many animals are capable adjusting birth rate to resources avaliable
We used the withdrawal method for over 6 years, and it only failed on me twice (due to my bf. having a hard time controlling his cumming lol)...so for HEALTHY birth control withdrawal/cycle monitoring method seems to be the best...I am almost 28 so I would have had 2 kids by now and not using any other birth control, which seems normal.
Also I have a guy friend who already had some kids and doesn't want more ever, so he had his tube cut.
I talked to him about it, and his sexual drive has not suffered one bit. I know he is honest about that because he is as horny as a muthafukka!
But even if he does want another kid they can extract his sperm and impregnate chosen woman with it.
Also he said the procedure is reversible, the little tube can be put back together.
The tube cut method seems to be a good 100% birth control if you're a guy that wants lots of sex and no more kids
