Hi, I just wanted to add that with my last baby my lmp was May 5th and her due date was Feb 12th If that helps at all.
I would also think you conceived in may as we are not much different with dates
If you are not sure who the father is do NOT speculate, get a paternity test done.
It'd say it's the 15th may guy as well
it is so confussing i no my peroid was the end of april but the more i think about it the more my mind goes blank i have gone to all my scans and the date has not changed baby is bang on wat i am ment to be just cant stop worrying.
According to the pregnancy due date calendar, conception most likely occurred on or around May 17th. Also if you had a period sometime after intercourse on April 18th, that means it did not result in pregnancy. So my guess would be May 15th. Hope this helps.