“Firm” breast?

So my boobs have been very sore, tingly, itchy for a few days, today and last night the felt a bit “firm” I guess you could say. As well as I’m having cramping and pressure on my uterus. I don’t know if it’s my period coming (I’m 1 day late) or if it’s finally a positive!

UPDATE:

I am now 4 days late for my period, I figured I’d give it a week or 2 considering I did use to have irregular periods.

Breasts are still sore.

I am having spotting (scared my period will come next week because it does that sometimes)

Fingers crossed!