Lactating

Hope some of you can help me. We been trying to get pregnant for a while now.. We had sex while ovulating. Now Im not sure if Im pregnant because for the 1st time I started lactating little amounts on both breast. I got tested because Im so anxious, but it turns out negative. Now I cant wait to be next week to see if I miss my period. Can this be a symptom or to feel anything weird it has to be after a month? Please help me girls, this whole adventure has make me more stressed than anything..