First month charting and a tad confused...

Heather

Would appreciate any advice on how mine is looking. App changed my expected Af start date from 10/4 to 10/12 to 10/6. Usually average 25 day cycle since having my DD almost 7 yrs ago and have been TTC with my DH for approximately 15 months now. Taking prenatal and tried eating pineapple core this month after O (original predicted on Sept 22nd) for 5 days. BFN's 9/29 and 9/30.