Exactly as the title really. I've seen several threads on here recently where people are asking if they could possibly be pregnant as they're having all the symptoms of it, but didn't think they could be as they've been using the withdrawal method....
Surely that isn't actually a method of contraception though. To my knowledge there is live sperm in pre-ejaculate so even if the man withdraws prior to full ejaculation, there is still a good chance of being pregnant. Why do people not know this, and surely this is the sort of thing that only teenagers believe will work?
I'm really surprised at how many adults seem to think this is an acceptable/reliable form of contraception. Am I totally wrong? What am I missing?