Prenatal vitamins question?

I have been taking prenatal vitamins while Trying to Conceive. I started taking them the first day of my period which was September 7th thru September 14th. I noticed from the day I started taking them I have had heartburn, No appetite, nausea after eating, and extreme nausea after eating anything dairy.

Could the no appeitite,nausea,and heartburn be from the prenatal vitamins?

It's been 3 days since my period ended and now entering fertile period days and about to ovulate in 2 days. So I know my period wasn't the cause because I'm still experiencing these symptoms.