I had unprotected sex on may 29 around 12am my fertility date was on may 30 what are my chances of been pregnant? can sperm fall out blanket was wet?

Possible.: Given the timing, it is certainly possible that you have become pregnant. You should wait until you see if you have your next menstrual period. If you do not, then I would do a Home pregnancy test. Good luck.

Possible: Anything is possible. Only way to know for sure is to take a pregnancy test around the time when your next period is due. Sperm does not "fall out."