PAINFUL boobs. What do pregnancy boobs feel like?

For the past week my boobs have hurt so badly I can't wear a bra, and hardly wear a shirt even. I actually want to cry they hurt so bad. Can't touch them, can't lean them against anything, won't even let my SO touch them. They aren't hard or anything and they aren't too much bigger. My period is 6 days away but I've never had it like this with PMS before. I was too scared to test this morning because I'm actually afraid itll be positive because I'm also getting nauseous around 8pm every night for like a week. I'm 21 and scared. Of course I'd welcome a baby with lots of love if there is one but I'm terrified.