To test or not to test

My SO and I have been TTC for 2 years, on April 8th I started to spot and get cramps at work which I figured was my period but it lasted about 3-4hrs then just stopped, April 10th while I was with my SO I started to spot again yet again only for a hour or two. The next day April 11th I had bad cramps and on and off spotting for most of the day, today yet again I had the same thing but the spotting was much less and the cramps were very intense. My period is due tomorrow April 12th and I don’t know if I should be testing or not

*Side Note; spotting has just been brown like old blood no red or pink colouring

Should I be testing or has anyone else experienced this?

Any help or advice would be much appreciated

** I also took a ovulation test yesterday which was positive (I don’t have any pregnancy tests in the house at the moment) but my ovulation test today which was taken later in the day was negative

Update; April 13th, started spotting heavier at work, still a brown colour. Waiting until Thursday morning (April 15th) to test if period still hasn’t came