Experience with vitex

Shelbie • TTC first for 6 years and miscarried at 7 1/2 weeks with twins. 3 months progesterone only. 5 timed intercourse cycles, 3 IUI cycles, 9 timed intercourse with trigger shot. All fails! Have till September to conceive on our own then we are onto IVF
Took vitex for 6 months last year, had very light periods-brown spotting for 9 months. Not sure if it was vitex related. But didn't know if anyone had this experience, or if something similar happened with fertility blend? TTC for 22 months now. Needing new excitement and information to try