Itchy boobs..?

Ok, so for the past 3 days my boobs have itched nonstop! It's crazy! This has never happened to me before and I'm wondering if it could be a pregnancy symptom or just a period symptom..the other thing I'd love to know is how to make it stop!! It's driving me crazy throughout the day!

Any help is appreciated, please and thank you!

(Ps, the app says my period is due in 6 days, but my husband and I haven't been as extremely careful as normal because we will be ttc in a few months, hence the pregnancy symptom question. Lol)