Nervous about it

I had sex on the 9th this month he wore a condom and didn't finish and we had sex for like 3 minutes 🤦‍♀️ anyways my period is due on the 9th. Usually I have pms symptoms a week or two before my period and I don't have any symptoms. Do you think i have any reason to be worried about being pregnant? My boyfriend says it's really unlikely that I'm pregnant.