I was 16 2 weeks ago and my gym coach has started trying to take advantage of me. he is 18. I have tried telling him not to and he said he wouldn’t but then he started doing it again he is really strong and can pin me down with one hand while undressing me with the other.I don’t know how to stop him .if my freinds are there with me he dosen’t care he just starts doing it anyway and if they try to stop him he just knocks them out of the way I have had sex before but i don’t want to get pregnant and he won’t use a contreceptive he says it spoils the pleasure of having sex please help me !!!!!!!!!