My surge usually last 2-3 days from initial positive to darkest back to light positive. Usually I o about 10 hours after my darkest stick (I text like 3-5x a day lol) and did bbt to confirm. Fxed. It does seem to me like you are ovulating now though especially with the irregular cycles. Have you doctor's checked for a cyst? A few years back that was causing issues with my ovulation and giving me crazy long cycles. The doctors wouldn't check because my longest was only 60 days but then I fell pregnant and at my early scan they found it just chilling being gigantic.
Nope they haven't, not sure if it's because I haven't had any pain or anything , I will be switching OB's soon though so maybe I'll bring that up...I do hope this is a actual ovulation this time lol I will see in 2 weeks with a period or BFP!