Well this all matches up:
Due Date Calculator
Your due date calculation is below.....
Based on a last menstrual period of August 26, 2009:
Your due date is June 02, 2010.
Your baby was conceived around September 09, 2009.
Your first trimester begins August 26, 2009.
Your second trimester begins November 19, 2009.
Your third trimester begins March 04, 2010.
There are 6 days left until your due date.
thanks. i am pretty sure its my ex's but i guess i just needed more reassurance lol. i need to learn not to let stupid temptation get to me.
Based on a last menstrual period of 8/26/09, your due date is June 2. If you are saying that they are coming up with the same due date based on your baby's measurements, then I would say it is your due date. If those 2 match up, that is a pretty sure sign. If you have a regular 28 day cycle, you would have conceived on or around September 8 or 9. So, it seems unlikely that you got pregnant from your sexual encounter on Sept. 26 or Oct. 5. Ultrasounds are pretty accurate. They can be off a little bit, but to be off by over 2 weeks, especially early on, is pretty rare.
If you got pregnant from having sex on 9/26, you would be due around June 20. If you have regular 28 day cycles, however, then on 9/26, your period was already late, which would again suggest that you were already pregnant.
The only way to know for sure is to have a paternity test done. Best of luck to you.