Vitex with BFP

Mallory • 27 year old 👩🏻 Vet Tech 🐶Married to my amazing husband 💍 Hayden Lois 12-24-17 💗 Treyson Allen EDD 2-10-20💙
I started taking b12 B6 and Vitex this last cycle to extend my luteal phase and got my BFP and I'm 4 1/2 weeks. Should I continue taking Vitex and the b vitamins?! Will it harm the baby?!