First timer!

J

Hi ladies! This is my first time ever charting my BBT and I’m a little confused. I’ve tried googling but there is a lot of conflicting info out there. I had been taking OKPs but never got a positive (I didn’t get a positive either when TTC with my 1st but obviously still ovulated 🤷🏼‍♀️). Glow initially had my ovulation day on Aug 28th but because I kept marking no serge it continued to push it back. I gave up on taking them so now my DPO days are just off. I’m breast feeding so I wasn’t even sure if I was ovulating yet but we’re TTC baby #2! Soooo based on my chart and the dip on the 30th, does that likely mean I ovulated on that day? Or is it typically the day before or after the dip? My temp seems to super fluctuate and I had read that it needed to stay high for 3 days after the dip to mean ovulation but obviously mine didn’t. Please help!!