Should I take plan b?

So I had a tinder date this weekend, this was my second date with this guy. He is very sweet, on the first date we drove around and ended up making out in the passenger seat, it was hot. This time things went farther and we had sex, we had discussed this and we both really wanted to. He made sure that I finished every round. We used protection the first two times but the next morning we ended up using just the withdrawal method. I just ended my period a few days ago and glow says there is a low risk of pregnancy. Should I take a plan B pill or do you think I will be safe?