So confused.

Jessenia

I honestly have never really got it when it came to the chart stuff and ive became so obsessed with trying to get pregnant for 2 years now. What does this look like? My bbt dropped but this morning it started to go up. I herd about implantation dips but it doesnt seem like my bbt stayed high for too long. Im expected to start my period today but im just spotting what seems to be old blood with some cramps but very mild. I took a test and i got a vvfl. I need reassurance.