For those ladies that check your temp.. help a girl out what do I do?

Bree 🖤♉️ • Mrs. W 5.5.16 💍 Boy Mom 11.6.17 💙 Girl Momma 8.5.19 💗 Girl Momma 9.22.21 💜 Dog Mom 🐶

Can someone give me advice think I may start checking mine. When do I know when to have sex etc?