conception problems!!!!! help

[oobi21]

Here are the dates
May 19- slept with other man
June 13- last menstrual period
June 27- slept with boyfriend
August 9 - 1st sono (crown to rump) 8 weeks
August 17- 2nd sono 9 weeks and 3 days
August 24- 3rd sono 10-11 weeks
Sept 3- 4th sono 12 weeks and 2 days

Could i have mistaken vaginal bleeding for my period on June 13?
How likely is it that the May guy is the father?>

[Msshine]

I'm sorry. I meant it's more of a chance to be your boyfriends.

[Msshine]

I'm no Dr but it's almost for sure the other guy may be the dad. Here is my scenario. I got my cycle 7-11 had sex 7-28 & 7-29. Didn't get a cycle in august.

[JoyRenee]

By the dates and the fact you had a period it would be the new guy. Ovulation occurs only once in your cycle and the egg is only viable for 24-48 hours. So in one cycle you have a small window of conception. It occurs about 2 weeks before your next period. If you were having a regular 28-day cycle you would ovulate about mid-cycle or 14 days after your last period.