No Sore Breasts Just Itchy?

I’m currently 3 days late on my period. This is super weird because I know I ovulated this month, and I’ve been having cramps and I’ve sworn my period was about to come down but it hasn’t happened. I don’t usually have irregular cycles, my cycles have gotten so regular that they’re coming on the exact same date each month. My beasts usually become very sore tender and large before my period but my breasts just feel a bit more heavy and they’re very itchy. Has anybody had this happen??! I’m 20 and I’m super scared I might be pregnant.