 [ Symptoms ] i am unable to manitain an erection for long it just goes a way in the middle of sex without warning i do not exactly have a problem getting an erection the problem is that i cant maintain it for long and i cant get another one after wards sometimes i can maintain it longer then other times but never for long and never to finish sometimes when i do maintain one for longer then other times and feel am about to finish it goes away with out warning most times i just stop and give up or have to bring myself to almost finish it is very frustrating for me and my wife [ Disease ] no contraceptive method is 100 effective so it is always advisable to take a pregnancy test if you think that you might be pregnant regardless of the type of contraception you are currently using or have used in the past it is best advisable to consult your gyno or use a home pregnancy test kit source  pharmacysell