Last month I had sex with my boyfriend 3 times

Patient: Last month I had sex with my boyfriend 3 times every time using a condom, and my period came at the end of the month the usual time I get it. Today my stomach was slightly pulsing for maybe a minute when I asked my friends who said that you can still be pregnant even if you get your period. Can I still be pregnant even though my period came at the normal time and was regular like a normal period?

Doctor: