I really need to know

[Babybop24]

My question is my lmp started April 20th 2012 and if I went by my lmp I would be due January 26 but from my ulter sound they said that since my period is irregular my due date is February 13th which is a big jump I need to know who is the father I had sex with a male before the 18th of April 2012 but ever since April 18th I've been sleeping with the guy Iam now with every day since the April 18th 2012 even on my period someone help ?

[AnnieBrooke]

The bigger the baby gets, especially if he or she is growing faster than average, the more likely your due date is to get pushed earlier simply by the baby's measurements.  But it would take a lot more change than you have time left in the pregnancy, to reach a point earlier than April 18.  I'm sure you are fine.

[Babybop24]

I had my first ulter sound when I was 17 weeks !

[Babybop24]

Thank you so much I figured that it was just re assuring hearing you put it like that thank you :)

[AnnieBrooke]

Here is what the conception calculator says for a due date of February 13:

Probable Date of Ovulation:  May 23, 2012
Possible Dates of Conception:  May 19 to May 27, 2012
Due Date:  February 13, 2013 (40 weeks)

and here is what it says for a due date of January 26:

First Day of Last Menstrual Period:  April 21, 2012
Probable Date of Ovulation:  May 5, 2012
Possible Dates of Conception:  May 1 to May 9, 2012
Due Date:  January 26, 2013 (40 weeks)

Despite the big discrepancy in due dates (and did you get the ultrasound later than your first trimester?  That would explain it, ultrasounds can vary a lot as the baby gets bigger) -- anyway, despite the discrepancy, the possibilities for conception do not go any earlier than May 1 no matter which due date you use.  So, the guy you have been with since April 18 sounds like the dad.

[peaches421]

My last lmp was march 31 and im due jan 5...if that's any help

[PurpleLush07]

Ur bd should be the second im due feb 23 conception jun 4