Positive opk negative hpt

Beth • #TTC 3years🌟 #21yearsOld👌 #babyDust to all✨🤰🏽PcosLady👶🏽

So I was due for my period on the 1st and I havnt got it my periods are always 3 days long don’t get long periods at all I took three opk day of my missed period up until now and they are all positive which is very confusing....

I’ve had cramping and lower back cramps, felt sick

Just hoping someone could give me some advice on what this may be....