CAN A ULTRASOUND BE WRONG ABOUT HOW LONG I AM PREGNANT?

[trati]

I WENT FOR ULTRASOUND AND THEY  TOLD ME I AM 6 WEEKS PREGNANT. BUT THE ONLY TIME I HAD SEX WAS 4 WEEKS AGO AND 3 DAYS LATER I WAS OVULATING. CAN THE ULTRASOUND NOT BE CORRECT?

[ambiguity]

I had a scan saying i was 6 weeks pregnant (give or take 5 days)  and the sac measured 11.5mm. I had sex 3weeks and 5 days prior to the scan but also 6 and 8 weeks prior to the scan.... When would the likely conceived date be..? The 3 weeks and 5 days , 6 or 8 week???? This determines the father so I reallllllly need to know.....
Can a sac show 11.5mm after 3.5 weeks?

[Lyrics_music]

My US was late..i hadnt known I was pregnant until I had morning sickness..the first time I went they said I was 10-12 weeks preg. My lmp was 11/6 & I had had sex 11/10 -11/19 ..i had spotted for a few days 11/21-23 so light it barely had anything on a tampon!...they changed my weeks a couple of times that I went..now they say im 35 weeks..which makes my conception date dec.5...& my EDD aug.28..help me im confused...

[88b88]

She admitted to an affair on August 1 2011 but that doesn't add up she had a period and it was normal. I'm so confused

[88b88]

My gf had an ultrasound at 12 weeks 4 days from the first day of here last period. The ultrasound shows that she is 14 weeks instead of 12 is it possible for it to be off by that much?  We are almost positive of the conception date of 9-9-11 because we never see eachother I work out of state didn't see her before that for 2 months.  Is it my baby ? Help?

[pollybee1]

i need help!!! i am pregnant ok.. i went for a scan last monday and they said i was 7 weeks which means i conceived on the 11th of october i broke up with my boyfriend thn and slept with somebody else on the third of october however i used a condom and had a period the following day and it was normal.. so they said i conceived on the 11th 8 days later??? i got back with my boyfriend on the 15th of october ???? omg what is what cud it be wrong??????????????????????????? i wana cry

[zaya01]

My girl and I broke up around the beginning of june. she missed her period towards the end of may,  we got back together towards the end of june and we gotten an ultrasound in july stating she was 6weeks 5days pregnant. She got with another dude for about 2weeks, could the ultrasound be wrong although she was feeling symptoms even b4 we broke up?

[preggonerves1975]

i am going through the same thing they say im 23 weeks and i should only be 22....im so nervous because i was with someone else right before and am unsure who the father may be and i dont remember when my last period is....ughhhh this is exausting!!!

[concernedpreg786]

I had an ultrasound today that told me i was 8weeks 5 days which i think is out as i can only be 6 or 7 weeks!

My boyfriend is a state and is claiming its not his. But unless its baby Jesus theres no-one else!

Can it really be this wrong?

[Concerned768]

Can a ultrasound be off by 6 - 10 days? I went and was 13 weeks, after the US they said I was 15 weeks! could it be off?

[GRose]

It depends, did she have an early ultrasound? Early ultrasounds are VERY reliable and are usually only off by a day or two. Once a women gets further along the ultrasound can be a little off.
One thing you need to understand is that doctors count pregnancy from the first day of a womens last period so they are actually considered pregnant for two weeks before conception actually occurs. So, this means that if she is 28 weeks the baby is actually only 26 weeks. It is possible that the u/s is off if she did not have an early one but if they are just going off of a later u/s it could be a little off.
I would suggest that you request a paternity test just to be sure.

[abbasmarafa]

my girlfriend is 28 weeks pregnant but i only meet her 23 weeks ago, is it possible that ultrascan can be wrong by 4-5 weeks.

[AnnJ]

If you got pregnant 4 weeks ago, medical professionals will consider you 6 weeks pregnant. A pregnancy is 10 menstrual cycles, or 40 weeks. It simplifies things (believe it or not) for the doctors and nurses who will be treating you. If everyone had to decide exactly when conception occured, it would consume a lot of extra time and energy.

[Dare414]

When I got pg with my son, I had a "period" or implant bleeding.  When you fill out the form to take the pg test they ask when the 1st day of your lmc was and was it normal.  I had my last normal mc on 1/12 (this was back in 1993), but then EXACTLY 2/12 I started spotting, then 3 days later it was gone.  I used 2/12 as my lmc, but told them it wasn't my normal bleeding.  Anyway, they told me my due date was 11/22/93, but I was actually way more pg than that.  My real due date should have been 10/26/93.  When they did my US at about 24 weeks, it said my due date was 11/20/93.  My last month of pg was horrible, I was so huge and way overdue.  Of course the DR. didn't think so, but I knew it.  I went into labor on 10/30/93, but my son turned breech, so my contractions stopped and they sent me home.  I finially had a planned C section on 11/11/93, which they thought was early, and I knew I was way overdue. So I think US can give you a ball park estimate, but the US also takes into account your lmc that you told them.  I say, you know your body better than the DR.'s.

[mandymoo1983]

they were only looking for answers as to why there was an added two weeks and i have a couple of babies myself high risk so am always in for ultrasounds the earlier they do the ultrasound the more accurate it is is what my doctors have always told me and plenty of others on this site.

[Jenni6485]

Just for kicks, I've heard, if you get pregnant before you ovulate it's a girl! :-) Congrats on your pregnancy, I hope everything goes well.
Just like what the girls above said, they go by your LMP. They pretty much consider you two weeks pregnant by time you get pregnant, because when you start your period, your cycle starts, and your body starts preparing itself to be fertilized. If it's not fertilized by THIS DATE___ then your eggs start dieing, and then you start your period. :-)
So if your guy is going all nuts on you because your more pregnant then then you're supposed to, tell him to read a little on the female reproductive system :-)
The ultrasound tech should have told you exactly how old your baby is. They do that by the size of your ovaries.. When my ovaries were 5.8cm, I was 8 weeks 6 days pregnant or something like that. I can't remimber exactly. If he didnt tell you, then get a copy of the results from your doctor. (they foward the resluts to him)
From now on, you should really do some reading on pregnancy. There is SO MUCH to learn about your body, and why it does this, or what causes that, or what this feeling is, etc. "What to expect when you're expecting" is a REALLY neat book. It's like the pregnancy bible. :-)
Good luck! And congrats!
<3 Jen

[mandymoo1983]

they add two weeks onto the date the date goes from the first day of your last menstral period not when you ovulated or conceived hope that helps.

[nursepatient]

I'm sorry, but confused about the previous posts. At this early stage the US could be incorrect. Have you had blood hormone levels of hcg checked?