Is losing breast soreness normal this early?

Briana

I'm 4 weeks 1 day and my nipples have been very sore for almost two weeks now, I was suppose to get my period yesterday. Well today it feels like my breasts are practically back to normal and I'm terrified that means I'm miscarrying. I had a miscarriage last year where I got sore breasts for one day, and ended up miscarrying the next. Anyone else experiencing this?