Plan B

So I took plan B last night (8 hours after unprotected sex) we weren't sure he came inside but as he pulled out he did start to cum.. I took plan B just to be safe. I'm really nervous but I also feel like I may be overreacting. 
Definitely sticking with condoms after this experience. I was also thinking about using female condoms instead.. But I've never used one and don't know if it feels different or what lol.