Not sure if I'm pregnant or not, need help!!!

My husband and I have been ttc for a while now, with no luck. We lost our daughter Feb. of last year, and have been trying evrey since. I was due on the 10th of October to get my cycle, however it did not come; Ive always had my periods come around the 10th or 11th for the longest even after having my daughter. On October 20th, I started to spot a bit but it was like the ending of a period, it was light pink and more dark, that went on until the 22nd, however on the 22nd it was only when i wiped. I havent been stressing or anything like that, I dont drink or smoke. Im not sure whats going on, I took 2 tests since my cycle has been late, but both came back negative, I am scheduled to do blood test this Friday but Im so anxious I need to know something in the meantime. 

The only symptoms Ive had was bloating, overeating, and on and off headaches