[Bonny]

I try to explain it: for example: 
my cycle is 20days long, my obgyn said I have not PCOS and I can ovulate: so —-> 20 - 14 = 8 —-> my  follicular phase is 8 days long

Other example: your cycle is 30 days long —-> 30 - 14 = 16 —-> your follicular phase is 16 days long 

Lutheal phase always last 14 days (if u have PCOS or more than 40 years the thing is different but we don’t care) 

When you ovulate your temperature increases NOT DROP. You can find this information everywhere if u can’t trust me. Just search “body temperature and ovulation” 

Your follicular phase starts when your AF ends. 
I must tell you an example: my cycle is 20 days long and my AF are 2 days long so: 
8 days = follicular 
14 days = luthal 
2 days = AF 
Then my cycle starts again from follicular. 

I hope this is clear. You must know all about menstrual cycle and endocrinology before start your NBE if u wanna see results.

Cely, who told you that luteal is always 14days? 

My understanding is luteal is from end of ovulation to menses. Ovulation is marked by drop or low temp followed by a rising of temp and showing of mucus in underwear then luteal begins until menses begins. 

If Cely can point me to some info about what she has said that'd be great.