Is this normal? Vitamins...

Elizabeth
So I started taking vitamins because I'm TTC. They aren't called prenatal so, but they have all the same stuff (and then some). They're just 1 a day women's gummies. I've been taking them for about 2 weeks. Well, in starting to CRAVE them! Even after I've taken what I'm allowed for the day! I'm 8 DPO. Is this normal, and does it mean anything?
I'm really craving them! Every day! It's taking all my willpower not to take an extra one