what do you guys think..?

Okay so I had sex recently.. like a week before my period, and I had my period but I'm being paranoid about still being pregnant.. and it's the very end of my period and I have condoms but I don't know if it's the greatest idea to have sex so close to my fertile week.. but I want to have sex again.. (if you couldn't tell I'm new to sex..) 
Also I'm not dumb so please don't sass me, I'm just paranoid and anxious. I have terrible anxiety so if you don't know what that's like I'll give you a little info on it- you second guess EVERYTHING you think or do or want to do. That's only a little bit so try not to be rude.