Aa
antibiotics and birth control pill
Hi, I have a few questions. My girlfriend and I had sex about two weeks ago for about three or four minutes, without a condom. I never climaxed or ejaculated before we stopped. It was our first time having sex that day and I had urinated atleast 5 or 6 times that day before intercourse. She is on the pill but has been on strong antibiotics 500mg (amoxicillin) for about 2 weeks. How safe do you think we are in regards to pregnancy? Thanks, Mike
i've taken the BC for quite a while(8yrs) and im taking this antibiotics (amoxicilin) for a week and i had unprotected sex and he came inside of me.. are the chances of getting pregnant too high???
both my pharmacist and my doctor said there is a 2% chance of getting pregnant... and that there are not enough studies that demonstrate that antibiotics really interfere with birth control. I have had sex while on antibiotics and the pill several times and I never got pregnant.!
im on the nuvaring and i too was taking strong antibiotics that my doctor warned me would effect my birthcontrol, not thinking one night i had sex with my boyfriend and he came in me. this was about two weeks ago and im starting to experience some symptoms i think could be signs of early pregnancy such as nausea and vomiting, headaches, fatigue, loss of appetite etc. however, i also have a fstrange, long cold. ive never experienced this before and ive never thought i was pregnant before. i took a test and it came out negative but people are telling me i could have taken it too early. i understand theres a big chance im pregnant but could it just be my weirded out cold?
thanks
thanks
If you urinated several times before, the chances of any pre-ejaculate fluid containing viable sperm is very slim. Generally fertilization due to pre-ejaculate fluid is usually because of sperm remaining from a previous ejaculation. Urinating eliminates that sperm. Pre-ejaculate fluid does not usually contain viable sperm on its own otherwise. Furthermore, antibiotics can lower the efficacy of birth control because in some instances, in some women, it can affect the amount of horomones in the woman's blood stream. It does not necessarily always make the birth control ineffective, and with most antibiotics (like amox) it depends partly on the BC and partly on the individual so it is not possible to get an accurate percentage of likelihood of conception when on BC and antibiotics, assuming regular intercourse with ejaculation. Given all of the facts, the likelihood of her being pregnant are very very slim.
Would you knock off another percent if his GF takes her pill at exactly the same time every day?
Depends, were they affected by daylight savings time? If so then yes, but if not then no.
Seriously, you gals are good, should market your skills, guys all over would pay to read your mystical answers! A question for your skills, I'm 20 weeks pregnant, my belly is getting bigger and I'm tired and moody, do think I really am pregnant? What are the chances, I do need to see a % here, oh, and I ate white toast today, but put peanut butter on it....okay, I need to stay away from others today, I can see my hormones will be raging, but it's so funny!
Is it a Man thing? To need things layed out statistically? Waht's up with him needing a percentage on something that NO ONE could ever know??
Can you imagine if the women here COULD ACTUALLY give everyone an accurate percentage as to the possibility of them having conceived?? Waht a Moneymaker site that would be. You could add that feature to the AmIPregnant website for an additional charge!!!
I personally give Mikey a 12% chance of having impregnated his lady friend given the fact that he had only urinated 5 0r 6 times and NOT 7 or 8 times. I think that increased the chances a bit.
And if he had whole wheat toast instead of White toast, well that might bring the chances down by, oh I'd say 1 %. I'll need to run that info on my trusty, Am I Pregnant calculator.
.
Can you imagine if the women here COULD ACTUALLY give everyone an accurate percentage as to the possibility of them having conceived?? Waht a Moneymaker site that would be. You could add that feature to the AmIPregnant website for an additional charge!!!
I personally give Mikey a 12% chance of having impregnated his lady friend given the fact that he had only urinated 5 0r 6 times and NOT 7 or 8 times. I think that increased the chances a bit.
And if he had whole wheat toast instead of White toast, well that might bring the chances down by, oh I'd say 1 %. I'll need to run that info on my trusty, Am I Pregnant calculator.
.
The best birth control that isn't affected by antibiotics and is 100% affective if used properly is the common aspirin. Ladies, just place it between your knees and hold it there. heeheehee This was my Dad's advice about BC when I was 15. No lie.
I couldn't decide between 6% and 7%, but I figured 6% would give him one more percent of relief. :)
Okay, just had to say that the above post is so great!!! I was gonna go with 5%, but I like the other one better. Too funny, nobody can tell you for sure, just wait it out, and go spend some time with her, you aren't gonna get much more for opinions other than, wait it out, might as well go enjoy your evening.
hey AMA17, I understand that there is ALWAYS a possibility of pregnancy when you've had sex. I also understand that some antibiotics may lessen the pill's effectiveness. I was just wondering different people's opinions on my specific case here. Like if people think there's a big chance or a low chance of pregnancy in this case. Thanks.
hey monkeyflower -- I've heard various mixed reviews on that - my doc says most kinds of BCP & antibiotics don't mix, and I've heard the contrary as well.. for example:
"Antibiotics that have been shown to interact with birth control pills include rifampin (brand name Rifadin), penicillin (Veetids), amoxicillin (Amoxil), ampicillin (Omnipen), cotrimoxazole (Septra or Bactrim), tetracycline (Sumycin), minocycline (Minocin), metronidazole (Flagyl), and nitrofurantoin (Macrobid or Macrodantin)."
vs.
"Penicillin and ampicillin both have the potential to interfere with the effectiveness of birth control pills"
vs.
"There are two ways that antibiotics potentially can reduce the action of birth control pills. Birth control pills contain estrogens. Some antibiotics, e.g., rifampin, griseofulvin, cause the enzymes in the liver to increase the break-down of estrogens and thereby can decrease the levels of estrogens in the body and the effectiveness of the pills. This can result in unwanted pregnancy. Therefore, individuals taking birth control pills should use a second method of birth control when taking these antibiotics or other drugs that can increase the break-down of estrogens."
so who do we believe??
"Antibiotics that have been shown to interact with birth control pills include rifampin (brand name Rifadin), penicillin (Veetids), amoxicillin (Amoxil), ampicillin (Omnipen), cotrimoxazole (Septra or Bactrim), tetracycline (Sumycin), minocycline (Minocin), metronidazole (Flagyl), and nitrofurantoin (Macrobid or Macrodantin)."
vs.
"Penicillin and ampicillin both have the potential to interfere with the effectiveness of birth control pills"
vs.
"There are two ways that antibiotics potentially can reduce the action of birth control pills. Birth control pills contain estrogens. Some antibiotics, e.g., rifampin, griseofulvin, cause the enzymes in the liver to increase the break-down of estrogens and thereby can decrease the levels of estrogens in the body and the effectiveness of the pills. This can result in unwanted pregnancy. Therefore, individuals taking birth control pills should use a second method of birth control when taking these antibiotics or other drugs that can increase the break-down of estrogens."
so who do we believe??
With the exception of rifamprin, antibiotics do NOT alter the effectiveness of birth control. Now, before anyone starts posting about how their best friend's sister's boyfriend's cousin's exgirlfriend got pregnant while taking antibiotics and the pill, remember that the pill is not 100% effective. Studies have shown that the percentage of women getting pregnant while on the pill and antibiotics is exactly the same as the percentage of women who got pregnant while just taking the pill.
You have nothing to worry about.
You have nothing to worry about.
"I never climaxed or ejaculated before we stopped. It was our first time having sex that day and I had urinated atleast 5 or 6 times that day before intercourse. She is on the pill..."
Your chances are very low. You're fine.
Your chances are very low. You're fine.
hey mikey -- look, there is ALWAYS a chance that someone can get pregnant - there are many here that either have, or know someone who got pregnant while on the pill, while using a condom, or by using any other form of BC...
It's going to be a waiting game for you. Wait until her period to see - if she gets it, then i guess you're lucky, and be smart next time, you will save yourself a lot of anguish. No one here can tell you for sure, it's up to nature. There are alot of circumstances to consider that we won't know - ie, how fertile she is, you are, timing, was she ovulating, etc etc etc etc....
so you have to be the one to figure out your chances based on both of your personal circumstances. YES, antibiotics decrease the effectiveness of the pill... the fact that you didnt c*m inside, helps, BUT (the dreaded but) you just never know!
Just wait & see - then let us all know.
It's going to be a waiting game for you. Wait until her period to see - if she gets it, then i guess you're lucky, and be smart next time, you will save yourself a lot of anguish. No one here can tell you for sure, it's up to nature. There are alot of circumstances to consider that we won't know - ie, how fertile she is, you are, timing, was she ovulating, etc etc etc etc....
so you have to be the one to figure out your chances based on both of your personal circumstances. YES, antibiotics decrease the effectiveness of the pill... the fact that you didnt c*m inside, helps, BUT (the dreaded but) you just never know!
Just wait & see - then let us all know.
so being on the pill still as opposed to not being on the pill still keeps it at 50/50? And not climaxing or ejaculating still keeps it at at 50/50 as opposed to ejaculating inside of her?? This doesnt seem right? The pill, as well as no ejaculation must carry some weight in the situation....
no one can tell you for sure if your chances are good or bad it all depends on the ferility of both of you. It's 50/50
I understand that pregnancy is always a possibility. Any time you have sex, you take that risk. I just want to know the chances. Are they good or bad, etc. Thanks for your post though.
pregnancy is always a possiblity, especially because antibiotics lessen the effectiveness of bc and even though you didn't *** in her there is always the possibility of pre-*** containing sperm.
If she doesn't get her period on time she should definately take a pregnancy test.
If she doesn't get her period on time she should definately take a pregnancy test.
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