Just curious as to when I conceived. Now 21 weeks and 1 day pregnant

[Brenda Hakime]

Actual LMP was on the 4/11/2013. Had sex on 18/11/2013 (ovulated). Expected period was to be on the 4/12/2013 (30 day cycle) but had light spotting on the 7/12/2013 (pregnant ?). Had a blood test done on the 14/01/2014 and 1st ultrasound on the 21/01/2014 (6w3d). Just curious whether dr could have mistaken my LMP due to implantation bleeding and when did i actually conceive???

Any help would be appreciated.

with baby girl - EDD 13/09/2014

[bunnywabbit]

On your first scan, they should have given you an official due date based on baby's development - is that the 13/09? That is the only real way you can somewhat guess the date to be honest (if count back 9 months...)

Using that date and cycle length, I make your conception date to be around 21/12/2013! HTH

[WantingPink]

Did you do a HPT around 4/12/13?

[Brenda Hakime]

On the 1st scan the EDD shows 13/9/2014 and that i'm 6 weeks 3 days along. I didn't do a HPT as I thought i miscarried due to late bleeding??

[Brenda Hakime]

i had 2 previous miscarriages so my cycles were completely messed up

[bunnywabbit]

I was told when I went to midwife and hospital appt. to use the date given at baby's first scan as the due date as is a good indicator for development, especially if unsure when your last period was (I was spotting on and off too so had no idea when I bled).

I used this calculator BBC - Health: Pregnancy calendar to work out conception given the other information you gave.

[Brenda Hakime]

Thank you. Was just wondering as the 18/11/2013 was like the last time i kind of ovulated and whether i got pregnant from having intercourse on that day or maybe on cycle day 20.

[WantingPink]

I think I am confused as to why you are questioning your ultrasound. Sounds like your cycles weren't regular due to miscarriage. Early ultrasound (before 6-11 weeks) is very accurate for determining due date. Is baby now measuring otherwise? I would trust your early ultrasound unless there is some other compelling evidence that your due date would be otherwise.

Your conception date based off of first uls was 20/12/13 +/- a couple of days. You didn't get PG from DTD on or around 18/11/13 it was the month after. So about a week before Christmas is probably when you DTD and got PG.

[bunnywabbit]

If you miscarry, didn't I hear that it messes around with regular cycle timing, so o timing would be out for you for a little while anyway?

[Brenda Hakime]

yes it does. Last miscarriage was on the 7/07/2013. I knew something was cooking after the so called LMP due to it being later than usual and much lighter as a normal period as i could see by my stomach aswell. I'm 21 weeks and 1 day now, but not really showing. Could it be that baby is just small and measures only that far? With my boys it made all sense but this time around it really boggles my mind. The doctor as well as we thought it might be further along but only measured 6 weeks 3 days at the time.