I Had Sex And We Had A Condom On, And

I had sex and we had a condom on, and it felt really weird so I told him to pull out when he was going to cum since it felt weird. Well, he didn't pull out before he came he pulled out during and when he did the condom wasn't on him. IT was stuck in me so I pulled it out and all around me was filled with cum. It doesn't look like the condom broke. Should I still take plan B? And also I am concerned this would be my fourth time taking that if I take it again. I took it two years ago, I took it in may and in August. I really don't want to have future problems getting pregnant. Would this make me have problems? Im really nervous please help me.