More NFP

According to womentowomen.com, if you had more couples over a longer period of time than just us over 7 years, NFP would not be as effective as surgery, which is greater than 99%, but the risks and side-effects of surgery would be greater. Likewise, although condoms don't present any risks or side-effects, they are only 98% effective like NFP (and NFP is cheaper). I didn't mean to insinuate that NFP would be 100% effective for everyone, just for us. I did mean to insinuate that it's the safest because it is.