Don't know if I even ovulated this month ?

Massy • Mommy of preemie twins born at 29 weeks with IVF fresh transfer
So I have two different calculations!!!!!  
This month I decided to try Clomid and Ovidrel (HCG) trigger shot to induce ovulation.
I had a 18mm follicle, so I was indicated to trigger on CD 11, which was on 11/10. Supposedly it's best not to use opk's or bbt to confirm ovulation when you trigger, it has an effect on it! But I still went ahead and used opk
While I was testing with opk's I got my first positive on cycle day 16 which is more than the 36-48 hours that you are suppose to ovulate due to the trigger shot, so that seems a bit off :/
I did feel the ovulation pains and all but can't remember exactly what day lol I'm a mess :( 
So I am today 14 days past my trigger shot, if I ovulated 36 hrs after the shot I would be today 12 DPO and if I go by counting after my positive opk which I also recorded on Glow I would be 8dpo today !!!!
Ugh this is so frustrating, well I caved in just out of curiosity and got a BFN
I'm hoping it's too early lol and that I am not out yet :/