I am pregnant (toward the end of my first trimester). The first date of my last period was 1/28/13. I had sex with "Guy #1" on 2/1/13. Then I had sex with "Guy #2" a few times between 2/2-2/11/13. Here's my menstrual cycle history: Last period 1/28/13, before that 1/4/13, before that 12/7/13, and before that 11/12/13. So days between my cycle have varied from 24 days to 28 days.
I work in a pregnancy medical facility (but I haven't spoken about my personal issue), so I've had a few 1st Trimester Ultrasounds. My first one was 3/13/13 and baby measured 6wks 4 days, the second one was 3/27/13 baby measured 8 wks 6days, the third one was 4/2/13 measuring 9wks 6days, and the fourth was 4/9/13 measuring 11wks. I am so confused as to when I got pregnant and who is likely to be the father. Do you have any insight for me? I know that a Paternity test will determine for sure, but I didn't know if you had a "likely" answer or insight.