Hey ladies- sending out an SOS !

My period is three days late and I usually have 28 cycle on the dot (occasionally 27)

I am currently TTC and took a pregnancy test a week ago which came up as negative.

I kind of have period cramping but way lighter than usual and haven’t had any blood, at most a bit of pink discharge (sorry for such major tmi!)

Just wanted to get a vibe wether I could be pregnant or just a sporadic late period?

Also, when would be the best time to test in your opinions?

Thanks 👏🏼