Could I be pregnant?

Patient: Every time my boyfriend and I have had sex, we’ve used a condom.. even did the pour water in the condom trick to check for leaks afterwards to see if the condom broke or had a hole in it. I’m on the pill, but I missed two days last month. I’m currently on my period. It began on the same exact day it always does, but it hasn’t been as heavy as it usually is. Could I be pregnant? I’ve also been super stresed out lately.