adding fertility blend to ttc?

Mikayla

So I still have 4 days before af is due and I was wondering if I would be safe to add fertility blend or if there is something else I should add? I am using opk, and taking one a day prenatals with 800 mg of folic acid. I plan to add preseed this month. I am crossing my fingers I don't need any of this because I get my bfp this week.