About a month ago I had intercourse with a professional baseball player, the first condom broke (a second one was put on). A week ago (3 weeks after incident) a bump appeared on my inner labia, it’s the same color as everything else, and it does not hurt. I got screened for STDs and HIV and it was negative. I’m concerned that it could be a syphilis chancre because for some reason they did not test for syphilis during the HIV test even though I asked them to. If it is syphilis is it only contagious now that a chancre is present, or was it contagious the entire time??