My boyfriend and I have been dating for a 1 now and were getting more physical. I'm 19 and he is the one that I've done all that stuff with. He is clean and im also his first partner with everything. I haven't been tested for any std but i know that i dont have one but soon i will make my appointment. When he fingers me, it stings and feels uncomfortable. Like right when he puts his finger in, it burns and stings and then is uncomfortable. It frustrates us. We tried having sex and that was also painful. I just don't understand it. I will see a doctor soon but i just needed some help right now. I tried fingering myself and it was the same feelings too. When i put a tampon in when im on my period, it doesn't hurt one bit. So please help!!!