what did your pregnancy boob's feel like?

So I've been having some pains my boob's for 3 days now. I'm 7 dpo rn. usually I get sore nipples a week or a week and half before I start my period but I never get sore boob's. Nipples are a little sensitive but barley, the pain is mostly around the nipple and on the sides of my boob's. I can feel the soreness without touching them but when I do touch them they're super sore. I also feel like they have a burning sensation to them and they also feel hot... but that may be because I'm having hot flashes. I've also been getting headaches today. I definitely think my boob's are bigger and feel heavier. does this sound like pregnancy? what were your symptoms?