Have symptoms but getting BFN

Looking for some insight.

Normally my cycle comes around day 38-40, hasn’t been later than that.

I’m on day 44 now and still no cycle.

Last week I had this slight cramping on the left side but didn’t feel like a period cramp. Now I still get slight cramping but nothing major and nothing like when I have my cycle.

Super super irritable.

My breast are tender and the nipples look darker, even noticed more bumpy around the areola.

Tested yesterday but it was negative.

Could it still be too early for the tests to detect the hormones or is my body just messing with me?

I had been getting a lot of headaches and some bouts of nausea but nothing serious.

As of today 8/3/21 still no period. Tested I think it was 2 days ago and got a BFN.

Edit 8/4/21 took a clearblue digital and it said I’m pregnant!