Please read. My new supplement combo for ttc. Too much?

I havent started yet. Second day of my period. Went and stocked up. I got prenatals with 800mg of folic acid. I also have folic acid tablets i believe theyre 800 mg. I got evening primrose oil as well.

Last month:

Tried using preseed last month but AFTER sex... kept forgetting.... thought it was successful. Period came 8 days late. No cramps until today (2nd day).

I plan on using preseed before sex this month in combination with the supplements. Any suggestions on how many folic acid to take? Not sure if you can have TOO MUCH.. considering the prenatal has some too.