What do you think?

I've been off the pill for 4 months with irregular cycles. Not sure when I ovulated (disrupted sleep due to sick toddler then husband made temping hard). Lots of BDing CD19- 27 since that was my fertile window on glow and FF. On CD 33 I had spotting for less than 2 hours (mostly pink). Nothing since and no AF. BFN on CD35. Currently on CD36. What do you think?