TCC, help with cycle?

[Luckylola12]

Hi all! So getting confused on the whole cycle thing and when you are suppose to be most fertile! Af.....1st dec, 9th jan, 17th feb. Bit all over the place so hard to pin point whens best to try? Any help appriciated =)

Roughly two weeks before af started/ is due is when you're fertile. To be more precise, you'll need to track any of: cervical mucus, opk, bbt or cervical position and texture.