The primary sex organs inside female would be the ovaries. Ovaries produce the eggs (ova) and secrete sex hormones. These hormones are needed to build up secondary sexual characteristics and results in cyclic changes in the secondary sex organs which can be required for reproductive function. If you quit each time, at least you are doing something to avoid getting pregnant. But couples that rely only on sexual intercourse do tend to get pregnant. A lot guys have difficulty with investing in prostitutes or escorts. Many are too proud to do so but secretly they would like it. The main problem is men tend to believe that in case you pay money for it you have to be bad with females. But many regular users of escort services are confident with women and enjoy their experiences which has a high class escort. Some people are only unlucky as far as women go and locate it tough to get women they can completely trust. However, in 2011, fertility specialists at Hull and Princeton published an important research paper. They tested 27 men and found that 37% of men had active sperm before ejaculation. The rest is not. Obviously, some men have a chance to become pregnant for the first time.