Am i pregnant? i had intercourse 3days before my ovulation which is today

Not likely: But, not impossible when ever you have unprotected sex if you and your partner are both fertile. So, see if you miss the coming period. Take a test if you do. In any case - always use protection if you do not want a pregnancy or an STD. It's a good habit to get into. It shows you care. That's attractive!

YOu could become: pregnant with that scenario. If you miss your period take a home pregnancy test.

Yes: Sperms can last up to 72 hours

Possible: It's possible. Since sperm can survive in female reproductive tract up to about 3 days, fertilization may take place if ovulation occurs on the third day after deposition of sperm in the vagina. A pregnancy test at the tin=me of a missed period should provide the answer.