Kinda understand my cycle length

Mrs. • Finally have our babies. R.I.P Kimara Jeffers. Welcome 2 handsome boys Allan and Kayden Jeffers. 👧🏾👼🏾👶🏾👶🏾👦🏾
Finally. I kinda got it. I was online looking up for cycles length. I have to enter two or more of my Menstrual Cycle Start Dates. So when I enter it, it gave me my average cycle length: it's 30 days. So I calculated it and it gave me all the information I needed. So I kinda little understand.