I am 19 and have been having sex for a while now and never had any problems until I got an IUD. Sex hurt a lot when I got it, and it never went away so I eventually took it out. It's been over a year now, and it still hurts. It's ruining me and my boyfriends sex life because I almost never want to have sex anymore. It feels like he's sticking knives inside me sometimes. But it doesn't always happen. Last night, we had sex and it barely hurt at all until he came. The second he came it started burning really bad and we had to stop. The same thing happens if I use lube or a dousche. I'm not sure what it is! It's like if any liquid touches it it starts burning.