Could I get pregnant?

Ok y’all so my boyfriend and I were just having sex literally like 15 minutes ago and everything was going really great we were having a good time then he finished. Usually when he finishes he pulls out. We also use condoms anytime we do anything so we have double the protection. But tonight he didn’t pull out and then he went to take the condom off and realized it didn’t just have a hole it straight tore down the middle. Meaning one thing. He came inside me. I’m not on birth control so that is bad. And not to mention it is 11:30 and everywhere is closed so I can’t get a plan b til tomorrow morning. I looked on my forecast and it says I’m at a low chance of fertility which is kind of helping my nerves a bit and I start my period in 6 days. But I have never had this happen before so idk if I can get pregnant by tomorrow morning. Him and I are both freaking out cause we can’t get pregnant right now we just aren’t in a good position to do that. And I know if we didn’t want a baby we shouldn’t have been having sex but we always use twice the protection so we never really worried about it. Does anyone have any ways I could bit off a possible pregnancy until tomorrow morning when I can go get a plan b and take it? Please I really need some help.