I wouldn't take a chance like that if you really don't want to get pregnant. I am 49 and have been married for 24 years. We had one daughter (planned) and since then we use what I call the pull-out method. (This is when my husband pulls out just moments before ejaculation.) I have heard people say that a man has to have the strength of a Hercules to do this. I don't know about that since I am not a man. I am just glad that my husband is willing to do this. Even with this method, my doc tells me I could get pregnant. I really doubt it but I don't want to use the pill or other artificial types of birth control. All it takes is one little hardy sperm and one good egg from you and you're pregnant. It could happen. Just my opinion. Take it for what it's worth to you.