Pls help me nipple pain!

Hi guys so yesterday I’ve been having this nipple pain and soreness around my left nipple my right is completely fine. Today is the second day and it’s so sore it hurts when I touch it and it’s a little red around it. I am 19 now and I’m also on birth control for acne only, not sexually active and my period is coming in 6 days, this never ever happened to me before my periods comes so idk if I should worry, been on birth control for 1 year and 3 months (the best for acne btw lol) but my breast really hurts and I’m not sure how long I should wait for it to go away then see a doctor pls help me🥺❤️