Okay I have this major question. I didnt get my period all Nov. I was late & started my period on Dec. 2 my period lasts 5 days all the time I finshed my period on Dec. 7th I had sex that day around 12AM. I also had sex on Dec. 16 & 18 with a different guy from the 7th.I'm now pregnant but I'm still a bit worried. I had an ultrasound on Jan. 14 where it came out to 6weeks & 1day exactly how the wheel said. I then had another ultrasound done on Jan. 29 where i measured 8weeks 0days. The ;ast ultrasound throws me off a little it was done on Feb. 11 where i measured 10weeks & 4days but in reality I should be 10weeks & 1day then she measured another one & it came out 10weeks & 0days that same day can you help me out?