Has anyone used forta fertility? when should I start taking the pills? Have any of you used it and it worked? If so how long did it take to conveive?!

Me and my fiancé have been trying for a year and a half im 19 he’s 20, I’ve talked to my doctor and because of her religious beliefs she refuses to get us checked for infertility for another 6 months to a year. So my sister was in Walmart picking up a new bottle of materna and she found forta and she told me I should try it. So yesterday I finally decided to go buy a bottle. I’m just not sure on when I should start taking them. And if they really work?