Help!

Jordyn
Ok so i had my daugter(stillborn) at 18 weeks i delivered her and placenta after 48 hrs of labor:( on dec 20th 2014 and i have yet to have a period. I spotted two days ago pinkish tint and the spotting was only there that one bathroom visit... According to fertility friend i ovulated on jan 30th my hubby and i have been ttc since dec 28th and the whole month of jan...i took a test today and it was bfn! Whats going on!!? I got faint bfp 1 1/2 weeks ago but it looked more like an evap. So im 6dpo and negative test now