When to tell?!

Marisa
Hello ladies :) I am in need of some advice. My husband and I are trying to decide when to tell our parents and friends and family that we are expecting baby #1. It will be the first grandchild on both sides and my husband is an only child. We want to tell our parents at least a few weeks before we publicly announce it (to make them feel more important).  I'm only 4+1 now and both sets of parents live across the country. Ideas??