I had unprotected sex with my husband three days after ovulation, could i be pregnant?

Not if you're right: You have to have intercourse before ovulation--no more than 5, and preferably less than 2--if you desire fertility.

If U had sex, maybe: yes. The best way to tell is to wait and see if you get symptoms, breast tenderness, morning sickness or miss your period. then do a urine test to confirm. Best rule of thumb: if you had unprotected intercourse, and you're both fertile, you could be pregnant.