don't know if I got pregnant before my period

[I'mgaj]

I'm very confused about when I got pregnant. I had sex with a guy on Aug.25 and he (pulled out). I also had sex with my boyfriend that last week of Aug.  On Sept. 2 I started my period. After 3 days of my period I continued to have sex with my boyfried. I missed my period in Oct. and found out I am pregnant. On Nov.1 I had an ultrasound done. The ultrasound said I was 8 weeks and 6 days pregnant and the baby measured avg. 23mm.  I would like to know how accurate the ultrasound is along with the measurements.
If I got pregnant before my last period, then I was really 9 to 10 weeks pregnant. But If I got pregnant after my last period then I would only be about 7 weeks because of ovulation,right? The doctor said I was 8 weeks 5days pregant according to the first day of my last period. When did I really get pregnant before or after my last period? If it was before, could I have been 9 weeks 5 days at the time the ultrasound said 8 weeks and 6days or could I have been less than 8weeks pregnant.
I'm sorry for the confussion but If you could please help, I would greatly appreciate it. My boyfried is so excited, and I realy screwed up by being with that other guy.

[AnnieBrooke]

Hi, Adrianna312, can you post your question separately rather than on the end of a long thread?  It's really hard to understand what you're asking.  Are you asking if you are pregnant?

[china26]

Hi im having the same problem rite now so who was the father? Your bf or the guy?

[Adrianna312]

Ok so I had my period an November but not December but like 4 or 5 months ago my pregnancy test came out positive then I had no period then I hade one then I didn't then I did then I took another one an it was negative then I took one last week in it was positive so how months can I be my stomach is really big

[Yungmu]

I hope you can help me .. I'm very stress thinking about it . I want to know who is the father

[Yungmu]

Also same. I had sex another guy aug 6 then I had period Aug 16 start not exactly sure then I had sex with my boyfriend sep 20 to 21 then I test PT its positive then I went to doctor they didn't yet see anything . but I tried to test 3x . and I wonder who is is the father of my baby? I'm so confused

[Yungmu]

Hi can I ask ?

[AnnieBrooke]

Hi, Bethaleana, it is not likely.  Do you have any doubt at all that the period August 13-16 was really a period?  If it was, it indicates your prior ovulation was around August 1, and an egg only lasts about a day.  

[Bethaleana]

I had sex somewhere at the end of july and then aug 10th but got my period on the 13 - 16 or 17 and now I am late and haven't had a period in September. Could I get pregnant from having sex the week of Aug 10th right before I got my period?

[AnnieBrooke]

You said, "what I don't get if they give you an ultrasound date is the egg already there the two weeks prior of when the baby start forming."  The way it works is that the medical way of counting out the weeks of pregnancy begins on the first day of your last period.  If a doctor were to say to you "You're 8 weeks 1 day along," he would mean you conceived about 6 weeks 1 day ago.  This is the way pregnancy is counted, not because the egg comes down with the period, but because in the old days it was the only signal they had for starting the count.  

[AnnieBrooke]

I think it is most likely to be the boyfriend's baby, since you had an ultrasound at 6 weeks 4 days and your due date was April 14.  But it's by pretty much the closest possible margin; the other guy does have a chance to be the dad.  The conception calculator I use suggests you conceived on July 22, a number that should be pretty precise since your ultrasound was at 6w4d.  But obviously if it is off by even two days, you can't bank on it.  In your shoes I would go through the pregnancy assuming the baby is from your boyfriend, but would definitely do a DNA test when the baby comes, since it would be unfair to all of you (not the least the baby) not to be absolutely certain.

[Kkaattee]

I meant 2016 on the due dates.

[Kkaattee]

Okay
Last period July 5
sex with boyfriend almost every day before july 23 we live together we constantly have sexual intercorse.
Sex with other guy 24 and 25
No sex with either 26-30
Back with boyfriend 31 sex from then and on.
I had urine test at the clinic 8/13/15 they said I was 5 week 4 days due date April 13,2006
Had an early ultrasound and was about right the dates match I was 6 weeks and 4 days due date April 14,2016

[AnnieBrooke]

Hi, Kkaattee, please write it out for me like this.  Check what I wrote, also, to be sure I'm understanding what you are saying.  You could have had sex with your boyfriend as close to the sex with the other guy as July 23?

First day of last period:  July 5
Sex with boyfriend:  July __ - 23
Sex with other guy:  July 24, 25
No sex with boyfriend:  July 24 - 30
Sex with boyfriend:  July 31 forward

Had ultrasound on (date) and was told I was __ weeks __ days along
Estimated due date given to me by ultrasound:  April ___, 2016

[Kkaattee]

I had sex with my bf anytime before aug24 I'm not quite sure but I do almost all the time and I just know the days we didn't which was 24,25,26,27,28,30 all the time before that and after on the 31 I can't really give you dates because I don't keep track but we've had sex. Is it possible it can be his. Honestly what I don't get is if they give you and ultrasound date is the egg already there the two weeks prior of when the baby start forming. Thanks a lot for you help.

[AnnieBrooke]

If you got the 7 weeks 4 days figure from an ultrasound, it would suggest the other guy is the dad, especially if you didn't have sex with your boyfriend around the week of July 20 because of the fight.  If it just came from a calendar or little wheel, there might be some chance it's from your boyfriend, depending on when you had sex with him.

[Kkaattee]

If i been having sex with the same person for 4 years I took out my iud 4 months ago I'm 7 weeks and 4 day I had a fight with my boyfriend and had sex with someone else July 24 and 25 my last first day of my period was July 5 could it be his or my bf I never use protection with my bf and neither did I with the other guy.

[AnnieBrooke]

If your next period was only due around now, it was too early to test two weeks ago.

[mary_gzz]

i have already took two about 2 weeks ago and gotten a negative result on both. Could it be possible it was to early?

[AnnieBrooke]

Hi, Mary, best thing is to take a test.

[mary_gzz]

Ive been trying for a little one with my husband. i had my period June 24th for about 7 days.. Continued trying throughout the whole beginning of July until i received my period again July 22nd for the normal 6/7days. it is now august 22nd and no period. could it be possible that i am now pregnant?

[AnnieBrooke]

Hi, Jelisa, I answered where you posted this as its own question.

[Bird27]

hello my nae is jelisa and im really confused i had sex with this guy on june 19,2015 but we used protection my period came down june 21,15 but on july 2,15 me and my boyfriend had unprotected sex went to the doctor they told me i was 4 weeks pregnant how is the possible wondering if i got pregnant before or after my period

[AnnieBrooke]

Hi, Promise, here is what the conception calculator says for a due date of September 12.  If you got the due date from an early ultrasound, the first guy is not the father, assuming, that is, that you had sex with your boyfriend later on besides the "days later" than "around the end of November" that you mentioned.  How did you get your due date?

First day of last menstrual period:  December 6
Probable date of ovulation:  December 20
Possible dates of conception:  December 16 to 24
Due date:  September 12 (40 weeks)

[Promise2]

I had sex with a guy in November around the end of the month , he used a condom and pulled out , then had sex with my boyfriend days later , I had a period in November and one in December it lasted the normal 3 days my due date is September 12th 2015 when I went to the doctor on January 21st I was 6 weeks , how do I know who's baby it is :/ PLEASE don't judge !