HELP... AF, Spotting, and Clomid

TTC shouldn’t be so complicated.

5 years ago I had a successful 1 round of Clomid with our dear daughter. I took Provera to start my period, and then Clomid days 3-7.

Now onto hopefully baby number 2!

I just finished my first cycle. And received BFN! It’s okay though...

AF started sneaking in late Thursday night... Friday morning I got up- and it was heavy... so I put in a tampon. Went to the bathroom a few hours later to change- and nothing. I had hardly soaked the tampon. So I put on a pad.... not a drop on it. This morning I get up and I’m led to believe the real deal is going to happen today. Again heavy when I first got up- and now only when I wipe. I am cramping- but nothing crazy.

I am supposed to start Clomid on day 3... which is tomorrow- but I’m worried this isn’t enough of AF to do so. Worried it’s going to be another wasted month. I did find some articles that said light “spotting” periods mean my uterine lining isn’t rich enough to House a fertilized egg. I have an RX for Provera... wondering if I should take it.... to boost AF. Grr! Any help, or experience is appreciated!