I have been spotting since period was due on Sunday

I thought my period was coming on Mother’s Day, was crying and everything since husband and I have been ttc for three years it is a sensitive day for me.

It never came. I started getting bloated and cramping Monday, Tuesday I started spotting but never enough to fill a pad throughout the day. I’ve been spotting since then. I haven’t gotten the bright red period blood color though. Here it is Friday, I am very bloated (disgustingly) my uterus feels swollen/heavy, I’ve been very hungry, and tired. Straight up feels like AF is coming but just doesn’t.

I had twinges in ovary area last night on each side both at different times.

I took a test yesterday, was negative

Is it possible that this is all pregnancy related or something else?