cd 40 neg hpt

Alright here is my dilemma.

I am never late with AF. The only time that I ever have been late is when I have been pregnant. Each pregnancy (only twice in 7 years) has ended in MC.

I'm currently on cycle day 39 .Last Af was Jan 28th usually cycles are 28-30days. Af was due March 1st. I have been taking hpts every couple days all with BFN except one yesterday morning which was a very faint positive with first morning urine since then only negatives. My doctor can't see me til March 28th.

I'm going crazy over here with the unknown. ANY INSIGHT would be awesome.