Don’t know for sure what’s going on

Ashlen

I had my period December 11-15 then again December 28-January 2. And I haven’t had a period yet this month. Not sure what’s going on. My nipples are swollen and tender and I’ve had a backache for the past week. Classic symptoms of a period. But no period. I took a pregnancy test last week and it was negative. So I’m just wondering if anyone else is going through the same thing.