I have 2 or 3 times but they were not showing and I did not find about it until months later. I had 2 experiences in civilian life.(excluding my wife).
In the first case 12-15 of us were partying at the apartment of 2 girls.There was a lot of booze,pot, and a group shower.I was trying to make it with one of the girls that lived there. It was working. A lot of heavy petting. Then I got shot down. She was on the rag. I was too drunk to drive. I crashed and woke up in bed with her room mate. A month later, I found out that she was knocked up. I asked her if I was responsible. I was willing to help.She said no. It was not me.
2nd case.My best friend and I visited two girls at their apartment.He was married but a player. I had met both girls but never got together.One was single with no kids. The other was a divorcee with 2 kids. We could no go out go out together (no baby sitter)They went out. He made a bet with her that I would be fucking her room mate as soon as we left.He won. She was on me like stink on shit as soon as they left. A month later I found out she was pregnant. NO, it was not mine. Her words "why does this happen to the good girls?" Spoken like a true stripper!
No I have not. I understand however if you get one of them knocked up you are screw-ued. Your best bet is if she has done enough of them she does not have the funds to get them all for a DNA test.
A stripper frined of mine says a lot of them get knocked up from itc extras. I guess condom use is not that all consistent or reliable. Since some of them have so many they are shit out of luck in even guessing who it could be. Of course the father is long gone from the scene by that time.