I don't think I am

Well I'm on Nuva ring and when I was supposed to pick it in I was sick so I forgot to pick it up and when I finally picked it up. I put it in two days late and I told me boyfriend.(we don't use condoms and he doesn't pull out) so we still continued to do what we do. So I told him it could be a chance that I'm pregnant but I'm pretty sure I'm not....what do you guys think?