My LMP was anywhere from 10/6/11- 10/10/11. My Due Date is 7/14/12. Ultrasound on 12/1/11 said GA of 8 weeks and doctor said I was 7 weeks 3 days. Ultrasound on 12/15/11 GA was 10 weeks doctor said 9 weeks 3 days. Is it safe to say I conceived before 10/31/11

[QUOTE=hf71412;3165762]My LMP was anywhere from 10/6/11- 10/10/11. My Due Date is 7/14/12. Ultrasound on 12/1/11 said GA of 8 weeks and doctor said I was 7 weeks 3 days. Ultrasound on 12/15/11 GA was 10 weeks doctor said 9 weeks 3 days. Is it safe to say I conceived before 10/31/11 also positive hpt on 11/10/11

Moved from the Washington DC forum to the Pregnancy & New Motherhood forum

With that said, if your LMP began on 10/6, you most likely conceived on or around 10/20. However, calculating gestation is really just an educated guess. If you are concerned about paternity you will have to have a DNA test done once the baby is born.

How accurate is an ultrasound at 7 weeks?