Accidentally took my prenatal vitamins twice

I think I may have taken my prenatal pills twice yesterday.  My brain is totally blanking and I can't say for sure that I took it twice, but I'm kind of freaking out right now.  I know that you shouldn't take more than the recommended daily dose.  I'm 8 weeks pregnant and I'm concerned.  Has anyone accidentally taken their prenatals twice? Should I be concerned about this harming my baby?