Yesterday around 5:30 pm i had unprotected sex with my girlfriend. I did not cum in her, i pulled out and washed off. She took a postinor 2 pill just to be protective around 5:45pm. 20 minutes later we had unprotected sex again and i did not cum in her, i pulled out as well. We went to go eat and came back home, watch a movie. Around 10:00 pm we had unprotected sex again, but i did not cum in her, i pulled out. My question is, will the postinor 2 pill work even if we had sex after or she has to take another postinor pill?