should I take the pill?

So my boyfriend & I had sex thrice on 24/9/17 (its been two days).  The first time we used protection. The second time was after 10-15 mins without protection & he didn’t cum inside me. The last time was also without & he didn’t cum at all.
I finished with my periods on 23/9/17, so that makes it low chances of pregnancy. However, I had an orgasm. 
Do you think I should take the pill?