weird question πŸ˜‚

I'm expecting my period tomorrow so, I'm waiting until Friday to test. But, I've had the weirdest things going on body wise the last few days that I've never seen with my PMS before. I normally poop twice a day and more while on my period (tmi I know) but I feel so constipated as of Sunday. Another weird thing I've noticed is how heavy and sensitive my boobs are, specifically my nipples. Usually when AF comes the area around my breasts aches rather than the tip of the nipple being as sensitive as it is. Also, my nipple is constantly erect like I'm cold 24/7 πŸ˜‘ and I can barely lay on my stomach at night from the pain in the tip of my nipples. Am I imagining things or has anyone else experienced this and gotten a BFP??!