My husband and I went to classes through the Couple-to-Couple League through our diocese, years ago.
They teach the Sympto-Thermal method, as others have mentioned, where you cross-check your symptoms.
You use a basal body thermometer to record your basal body temperature, and do charting of your cycles.
It’s different than a fever thermometer.
I used to be able to rely more on my basal body temp. with sleep, but I have chronic illnesses where the hours of uninterrupted sleep that I need for temperature-taking are no longer reliable for me, so I just chart and watch for other visible signs that are still there for me.
My cycles are skipping, due to my age and due to heading towards menopause, but not being quite there–yet.
I’m just sharing this, for anyone else who might also be going through this.
I’m sort of in between still being peri-menopausal and menopausal, and my doctor ran female hormone blood tests and did a pelvic ultrasound too, just to make sure that I was still having my cycles and wasn’t having any abnormal bleeding.
Nope–still normal. I’m just going to have a very late menopause for my age.
I’m headed towards my late 50’s.