Charting your cycle - especially your basal body temperature (BBT) - can help you identify potential concerns in early pregnancy before they become serious problems. This means you can bring those concerns up with your doctor very early - or even discuss them as you’re still trying to conceive.
Basal body temperature: Definition and charts - Clearblue
How charting your cycle every day can help you
Should I be concerned about pregnancy with this chart? : r/FAMnNFP
What is the Fertile Window?
How To Start Charting Your Cycle — Fertility Awareness Project
8 Early Signs And Symptoms Of Pregnancy Implantation
Critical Periods of Development - MotherToBaby
Natural Family Planning American Pregnancy Association
Why You Should Be Charting Your Cycle - Clarity Solutions Blog