-"Choccy biccie". "Chocolate (or choc-late, if you prefer) biscuit" is practically the same number of syllables, why make the pronunciation like baby talk?
-"I'm a mommy" or "[verbing] mommyhood". You can be "Mommy" to your kids, you can even refer to yourself in the third person when talking to them "Mommy needs you to [do something]". But for god's sake, you are a grownup doing a grown-up thing: You are a mother. You are enjoying motherhood. ("I'm a mom" is somewhat grating, although less so than "mommy". But still, "motherhood" only.)
-"Now" only, instead of "now that": "Now I'm a mother, I can no longer go on weekend benders" instead of "Now that I'm a mother, I can no longer go on weekend benders". I hear "now" and I expect to hear a certain type of sentence structure - when I realize that it's meant as a "now that" sentence, I find it slightly jarring mentally.