I think I’m pregnant

Soo I wanna share with you guys, I’m 27 yrs old and I had misscariage last year. And that took me 3 months to be strong.

And it’s already a year after that happened. And I think I’m pregnant again ( I got my period late by a week ) We never plan this, my husband and I always doing it safely.

Should i take vitamins/ folic acid from now or just wait until next week?