I am 15 and I just had sex for the first time last Friday. It was unprotected but he did not cum. The next morning I had pain. The pain continued through Saturday and Sunday. I thought the pain was from having sex for the first time, but it's now Monday and I realized stinging while I pee, cloudy with some blood in it too, in addition to constantly having to pee and never feeling empty. I have had chills, too. I am almost 100% positive I have a UTI, but there is no way I'm telling my mom and getting medical attention for it, she can't know I had sex. I've read into it in depth, and the more I read the more scared I get. I'm on a vitamin regimen and I am able to get a z-pack, which treats bacterial infections but I'm unsure if it'll help me. Will it? are there anything I can do besides drink water and wait it out? How long will it last untreated? HELP!

Heather: I have a question about STD testing, but it's together with a lot of other stuff, so I'm giving you some of the whole story.

My long-term boyfriend just broke up with me, seemingly out of the blue. We were together for several of the most tumultuous years of our lives—we dealt with so much stuff, I can't even describe it. We lived together, we lived apart, we did long-distance, we came back, we kept going. We stayed together through moves, parents condemning our relationship, changing universities, changing friends, changing careers. I feel really stupid being broken up about it; my personal philosophy has always been: no mourning over guys. Only stupid women do that. (Obviously there's some of my own internalized misogyny in there, but I'm also being practical. A woman mourning a man comes off as pathetic; a man mourning a women is soulful and sad. That's just the way it is.) But I did (bleech, sounds so gross) really trust him. I let him in my, like, inner circle of trust.

He just broke up with me because apparently he HAS to sleep with this other girl, and he couldn't even wait until he was going to see me in a few weeks. He started hanging out with this group of party guys and I kept saying it was changing him. He kept denying it—until it did. He just got his first job and then started freaking out: he started to get into drugs, to do all this stuff.

I was wondering, can a doctor tell if you've masturbated? And in the case they can, is it possible to mistake it for being sexually active? I'm asking because I have a lot of health problems and I have to see an OB/GYN soon, which means that there's a chance the doctor will check to see if my vagina looks right. And I'm really scared because I don't want them to think that I'm sexually active, which with my health, would probably cause them to talk to my parents. And I'm just to shy to stick up for myself, so I really don't want that to happen. Thanks in advance for your answer.