Help please..

So last night I had sex and it was unprotected but he pulled out. Yeah I know the risks and chances with that, but I didn’t know he wasn’t going to use a condom. I just got off my period a couple days ago. I’m just worried over all and like I’m thinking about taking Plan B but I don’t have enough money for it at the moment and I just don’t know what to do. I know me freaking out is on me but I just don’t know what to do.