CONFUSED! Help!

Jessy • Hello! My name is Jessy. I am a certified Dental Assistant, and a Certified Health Insurance Agent!
So I'm late on my period 4 days and I've had brownish blood yesterday. In all began with really bad cramps , then I ran to the bathroom and saw bright pink blood and later that day it turned brownish. And today, nothing! I'm anxious to know! I had a few drinks last weekend and I rather know now so I can begin taking care of myself. I'm getting a blood test done this weekend. My hubby says I should wait a few days. He thinks I'm just late on my period. Lol has anyone gone through this? Curious to know! Xoxo P.S this is the test I took yesterday morning before I had light bleeding. 2/10/16