How bad is bad?

Melody • Pregnant with #2☺️
Is it ok to cheat once and awhile?  Like less than once a month?  Or does that one time of elevated sugar hurt the baby?  Or is it to hard to recover?
I am bakin cakes for my nieces birthday and without thinking I ate some of the crumbs I cut off.  And now I am freaking the F out....
I already feel like I am failing at being pregnant but now feel even worse...