Tmi picture!

Ok so 6 months ttc. Af started a day early this month and lasted 4 days. Af ended Thursday. last night while checking cm and position of cervix for charting this is what I found. Is it just maybe from af? Or could this be implantation? My ovulating days are strange and I actually ovulate twice in some months! Its just kinda threw me off because ive never seen this!