Question: Good afternoon, I have a question, I’m constantly thinking about it, I am 23 weeks pregnant with my daughter. My due date is 04/10/13. I had my LMP in July right around the 15th until the 17th I had one day of normal bleeding and a day or two of pretty light bleeding/spotting, I was dieting pretty strictly and so stressed out about my upcoming wedding, I didn’t think the light period was odd. Because my husband is in the Military, There is only so many days we could have conceived. The first date would be: July 4th in the morning. I took Plan B the evening of the 5th, as I was trying to find a different birth control method at that time, and we did not use any. I was with my Husband again, July 18th through the 23rd, where conception could have happened any of those days. I got a positive pregnancy test August 20th 2013. Based off my LMP my OBGYN placed my due date: 04/21/13. I went in for my first ultra sound, at what we thought was 12 weeks 1 day. This was October 8th. At that visit they determined I was actually 13 weeks 5 days, and they changed my due date to: 04/10/13. I went in: 11/12/13. For my second ultrasound, where my due date did not change. I was told I conceived around: 07/20/13 which makes sense, but based off my LMP it means I would have had to ovulate early, and 11 days is a very large difference. I went in 12/11 for my third ultrasound at 22 weeks 6 days, My daughter was measuring at about 1 pound 3 ounces only slight below average for 23 weeks. Im nervous, because I know my first ultrasound wasnt done within the first 12 weeks, While my regular doctor and ultrasound tech told me, it really is very unlikely I conceived around the 4th of July, and that 14-16 days between possible conception dates is more than enough time to determine accurate gestational age, I saw another doctor yesterday (my regular doctor was in labor) and she told me at 13 weeks it could be off by more than 2 weeks. That made me lose sleep! Could my due date be around: 03/27/13?