Birth control, period, sex, confused...

So I’m new at this but I really need some help before I worry myself sick. A few weeks ago on a Friday I got my implant birth control taken out. I switched to a new birth control that following Wednesday and then i started my period that same day also. During the weekend my boyfriend and I had protected and unprotected sex but he pulled out. And every time we used a condom it ripped. Could I be pregnant even tho i started my period a few days after sex? Please help