Hello. I just had an ultrasound and it shows that my baby is 6 weeks 1 day. However, there is a discrepancy from the date of my last period, which was May 3. The baby should be 7 weeks 6 days. This was my first menstrual cycle back from breastfeeding (I had one period). I took a pregnancy test on June 3 and it was negative. I got a positive test on June 18. The heartrate looked good for 6 weeks at 122. Do you think this is a case of late ovulation or that the fetus is not doing well? I know time will tell but I would like to know your thoughts. A little background I have never really had 4 week periods. I am usually more like a 5 or more weeks between my periods on a normal basis.