Pms: how soon is too soon?!

Samantha
I'm 13 days away from my period and I'm experiencing mild pms symptoms. 
Back ache, sore nipples/ tender breasts, acne, and mild cramps. 
Have had sex many times with my husband in the last month (iud alongside pullout method) I took a pregnancy test and it came back negative. 
Is 13 days before period too early to have pms symptoms?!