I'm fifteen years old. I've always had very painful period cramps(painful enough to make me miss school for days) for years and a very long cycle (10-12 days). So my mom took me to a gynecologist. They said to take a birth control pill to help. And we took some blood tests to see what type we could use. So now my options are either to take a shot every 3 months, have tablets shoved under my skin, or take the pill with progesterone only. We chose the pill which could cause blood clots. But what my doctor is also scared about is if I have this weird thing idk how to spell. But it's where your period blood backs up in the uterus and doesn't come out all the way. And I'm scared. I've only had my period for four years. I have no clue what is happening. I just want it all to go away. Also there could be this other thing. Idk how to spell either and it could stop me from ever having kids. Which breaks my heart. Cause ever since I was little I've always wanted kids. I'm just so lost and my boyfriend of three years just broke up with me. He didn't even give me a reason. He was just like hey this isn't working. Bye. Tried talking to his sister but all she said is that he's been cheating on me for six months with my old friend. And I'm just in shock. I'm so lost. I know I'm a teenager and break ups happen and you get betrayed. That doesn't mean I can't feel heartbroken. I just feel so lost in this mess. And I have no one to talk to cause all of my friends are going through things. I'm just lost. Someone guide me please.