i had two different ultrasounds at two different places. I cant really remember my last period but i think i have an idea of the day i conceived. OK, today's date is Aug 26 2010 i had an ultrasound done on aug 10th and i was 14 weeks and 6 days i told them that my last period was May 10th so today (Aug 26) i would be 17 weeks. I went and had an ultrasound done on aug 24th and i was 16 weeks and four days but i told them my last period was April 30th. How are those dates so close when i told them 2 totally diff periods??? Is it possible i conceived may 20th?????? I'm so confused because all this depends on who the baby father is and i want to be sure before i say anything. I have given exact dates hoping that will make it easier for someone to help me but i am so confused and stressed by this someone plzz help asap!