Strong cramps but no period!



So my period is late 2 days, I had intercourse during my ovulation. But the thing is this cramps are so bad I have to take co-codamol, when I think the period is about to come is just a urge to go for a wee and comes out a bit of discharge.

The cramping comes as waves but sometimes they are really really strong!

I feel also really really tired.

I don't want to test yet as I am "scared" of getting a negative result again...

It's so frustrating!!

Have any of you had really bad cramping and then found out you were preg?