Amazing, isnt it? People who want to have kids have the hardest time doing so and people that try to avoid getting pregnant end up that way. Now personally, I think its all about stress. People that want to get pregnant wait until ovulation, set a date, worry about orgasm and generally are nervous wrecks. Now the college kids that end up with bad news? They just went for it, despite most likely trying to avoid getting pregnant. Sounds like ocytocin can do a lot to help that.
Ocytocin is a hormone released in the body when you are being touched, are having a pleasant conversation, feeling warm, eating or getting psychological support from another person. After it is released, it promotes lessening stress and increases positive social interaction. Some researchers also think that it reduces the anxiety of meeting a new person, making it possible to have sex.
Look at the previous post that says there are more miscarriages after a natural disaster, even among women that were not directly involved in whatever the catastrophe was. After 9-11, there was a nearly 11% (10.7%) increase in miscarriages in the month of September in New York. Stress is bad for pregnancy, before and after fertilization.
So its not surprising that people want to touch each other before sex. Its part of the experience. We aren't like animals that just go at it, finish and walk away. There is a lot more caressing and foreplay involved. At least, ideally there is.
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