Risk of pregnancy ??!

So yesterday my bf and I were having unprotected sex (stupid I know) and he came inside me without telling me. I just started using the patch and he said he’d pull out but he didn’t. eve says my next period is supposed to start in 4 days. Is this too late to get pregnant as I already ovulated ?

I asked him to get me a plan b but he refuses and I can’t afford one and my parents would flip if I asked them for money for one. Thoughts ???