You conceived August 5th, so yes. Unless Guy a had monster sperm, Guy b is the dad. Sperm only lives in the vagina, at the most 5 days and only under PERFECT conditions.
so that means if i ovulated on time i would have been more pregnant right? cuz i slept with guy a on my period and guy b on agust 4th so it would be guy bs right?
I had this at an early scan they said i was 10 days behind what i knew i was by the time my 12 week scan came around baby had caught up and im due april 26th!
Same thing happened to me.. my period was July 20, due date April 26. But they changed mine to May 11. They said cause I ovulated late
It could mean you ovulated later. I'd trust the date given you by a 6w4d ultrasound.