When did I concieve?

[Expectant__mommy2]

I've always had a very irregular period and never really took track of it. Now I'm pregnant and unsure when I conceived my due date is november 22, any one out there that can help me figure it out?

[Expectant__mommy2]

Thank you for your help (: appreciate it.

[AnnieBrooke]

The ultrasound saw and measured the baby.  It then calculated forward to reach an estimated due date and backward to reach an assumed first day of last period, which it drops in at 2 weeks before the baby would have been conceived.  Doesn't matter when your period really came or if it is irregular, the ultrasound SAW the baby and measured it.  It was early enough to be reliable for purposes of a conception calculator.

[Expectant__mommy2]

Even if I had irregular periods?

[RockRose]

That's early enough to be very accurate.  According to an online conception calculator,  you ovulated around March 1,  so that's about the time you got pregnant.

[Expectant__mommy2]

I was 8 weeks and 3 days when I first got my ultrasound

[AnnieBrooke]

How reliable is the due date estimate?  Did you get it by an early ultrasound (such as, in your 6th-8th week)?  There are conception calculators that you can use online, but they are only as good as the estimate of the due date, and those estimates get less and less accurate the further along you are in your pregnancy.