No HPT until Monday. SOO broke right now. lol And we need a new thermometer. The other one got chewed by, guess who? Levi. I wish my body would just decide to have a period and just do it every month! This is ridiculous. How the heck does one do NFP with THIS going on?
Also, to answer your question, you DON'T NFP with no thermometer. Abstain, or condoms.