Shock positive opk

So bit of a back story I have awful irregular periods that can be affected by stress I got married oct and went 3 months without a period on the lead up. My last period was at the beginning of December and we then went on our honeymoon. I decided not to take any opk’s with me and although we are trying I just decided if it was meant to be it will be. Of course when we come back I decided to take a pregnancy test on what would have been my predicted 3 days before period … bfn. Yesterday as glow was showing I was 4 days late for my period I decided to take another and for some reason an opk. pregnancy test came back negative but the ovulation test came back positive. I then used a clearblue digital and to my shock positive also. I couldn’t believe it.

Has anyone else ever experienced this? I guess it’s also a bit of a long way of asking if I have any cycle buddies 😂