The female wants a nest with babies and male wants sex. This combination has worked well to over populate the world.
Most women will do ANYTHING, say ANYTHING to become pregnant. So don't be silly, wrap your willy. Always wear a condom when dipping the wick into that honey cup. You must take control of birth control because if you leave it up to her, she WILL get pregnant. Some women want to be pregnant or nursing for as long as they are able.
Don't believe it when she says she is on the pill, or is too old to become pregnant, or else you could be saddled with child support payments for 18 years. I could tell you many horror stories from my old friends who fell into that EXPENSIVE Baby Trap.
Complete romantic education here: