re: Is birth control really only 99% effective or is that more a safety barrier from lawsuits?

A friend of mine got his wife pregnant while she was on the pill back in college. She was on an antibiotics and that is when I first heard that antibiotics can decrease the effectiveness of the pill.

The guy I bought my first boat from got his wife pregnant after she had a tubal ligation. When her doctor delivered by section the baby, he said the tubes had an inch separation between the snipped ends and he had no idea how she got pregnant.

Independent condom studies have found a percentage of them "leak". Much higher in the low-budget brands.

But the biggest risk is always improper use. We probably have all had condoms break. The question becomes did we do something to cause that (other than friction )