Well I don't know because it is possible to get pregnant while on your period because it happened to me on the last day of my period and my daughter is 5 years old. Plus if you count 9 months from May you will get February and my daughter was conceived in May and I had her February 27. :)
June 4th. Cuz I concieved may 23 and my due date is Feb 12
Sorry, I just got it. May 22nd you started your period? You most likely would have ovulated on June 5th meaning the June 4th guy is the one most likely to be the father. The others were during and at the start of your period. Not likely for those.
June 4th guy is most likely the father.
When did your last period start?