Unprotected Sex

My husband and I had (kind of) unprotected sex, he was only inside me without a condom for like 30 seconds but still I know it's risky, and I was ovulating in 3 days and I sperm can live up to 5 days in a vagina, so I took plan B just in case, also bought a pregnancy test that I plan to take after I'm done ovulating, just to ease my mind or ya know, tell me the worst. I don't think I have much to worry about but idk, what do you guys think?