Must know before shower is it ok to drink while pregnant?

NO. There was one solitary study theat came out recently that said moderate drinking probably not harmful to unborn. Many flaws with this particular study. Many more studies over decades clearly show the dangers - everything from deformities to brain damage and signficant behavior and learning problems in moms who drank - even just a one-time binge. Don't risk it. Wait to celebrate until after birth.