Bizarre cycle and ttc

Shannan
I am ttc and typically have a 30 day cycle. But I am currently on day 38 of my cycle with no signs of a period starting anytime soon. I did have some spotting about 12dpo which lasted about four days. But since then nothing..... I was hoping that the spotting was implantation bleeding but I took a pregnancy test this morning and it was a bfn. Cm is creamy and whitish in color. Thoughts? Has this happened to anyone else, I always have a very very heavy period so I don't think there is any way the spotting was af.