HELP!! OPK POSITIVE!!

Hi All, I just need to what our chances are and of others conceived this way too!! I finally got my first positive an an opk last Friday. We bd that day. I got a positive say as well and we also bd. Unfortunately we missed having a "shot" as such Sunday. What are my chances of get a bpf? I had really strong pains on Friday near where your ovaries would be located. TIA