has this happened to anyone where your doc says that you are 6 wks preg according to your LMP but the fetus is smaller than that and only registers at 4w4d???
could it be that i ovulated late?
this is really worrying me. doc says to relax and come back in 11 days to recheck size of fetus.
Re: 6 wks preg, fetus is only 4w4d???
So this is my understanding...
a 40 week pregnancy is counted from your last period. There is 2 weeks that is added on there b/c its difficult to determine the exact time of conception. For most, you ovulate at 14 days after your last period. This means that for 2 weeks, theres nothing. So when you're 40 weeks, the baby is actually only 38 weeks.