Implantation or Early AF

Stacie • Engaged. 💍 Stay at home mom 5 year old son due any day now with #2

So average cycle is 32 most occuring is 35,36 days I started spotting two days ago and I was only CD 28 but af is predicted till next week so I'm currently ttc this month I didn't track Opk or temp. So I have no idea when I ovulated just going off of my usual cycle length and I would ovulate CD 21/22. So any one experience this too?