I experience vaginal pain during intercourse with my boyfriend, specifically around the opening of my vagina. No signs of yeast infection, STD screens negative/pap smears negative.

Is this new? Is this something new that is happening after having normal painless relations before or has it either always been this way or just become this way?
Dyspareunia. This is distinctly abnormal and should be investigated further. If your current doctor cannot find the source they may want to refer you elsewhere. Do not give up, there is probably a solution in sight.