TTC with late ovulation

Last period was 10/7-10/11 and then spotted 10/17-10/19 (unusual for me). I normally ovulate about a week/week and a half after starting my period' but the opk wasn't picking anything up. After talking to my dr's nurse she said I could ovulate at different times of the month so I started testing again.

Originally after starting my last period the next one was to start 11/3 but at some point Glow changed it to over a week later. I have now been getting a 'high' result on the opk since Friday, but now today I started spotting (normal a couple days before period). I imagine I'll ovulate tomorrow or Wednesday, but if we actually conceive the egg won't have my lining to move into if I do get my period.

Not sure what to do. Been trying since June and have always had regular periods, but irregular spotting since August (possibly stress induced).