Opk whilst on birth control

Hi everyone,

I started the pill about 2.5 weeks ago, before this we have been using the pull out method but he did cum inside me a couple of times the week before i went on the pill.

Fast forward to today and ive been having crazy sickness feeling, sore boobs and cramps so decided to take a pregnancy test only to realise I had taken an opk instead, anyway it was the strongest opk I’ve ever had not quite positive but definitely stronger. I took a few opks last month just to see if I was ovulating but never got anything more than a faint line.

Could I still be ovulating? I haven’t missed any pills at all.

Has anyone ever had a similar situation? I’ve added a pic of the ones I did last month plus the one today.

Thanks x