I believe it's simply no other reason than the fact that the female is the one that has to carry the child. No, it shouldn't be right to place such expectations on one gender alone, when it takes two to make a baby. However, there is an upside to this. Oral contraceptives like birth control are very useful at regulating periods and reducing cramps. Plus, you'll know when your period is going to be when you start taking the placibo pills. Hystorectames aren't as common as they could be because the procedure has to be done as a medical emergency, not a choice. So I believe a vasectomy is the same (I could be mistaken). As for condoms, I have never used a female condom in my life. My husband has always used them. And they've always been effective, I might add. But, I digress. No, it's not right to place the burden on one gender alone when both should be careful. One night of fun can turn into childbirth, doctor bills, DNA tests, and child support. It's not worth it.