you are at risk now of contracting Hep C from him......you should probably get checked immediately. YOUR health and YOUR BABY'S health are far more important than his addiction right now. whatever he told you about this relapse, you can pretty much double the length of time and the amount used. if he was "just" snorting it, why the burnt spoons? addicts are great at half truths......partial truths. which can also be stated as LIES. and as he is "taking" money from you without your permission, you can add THIEVERY to the list.
what he says he's gonna do is nothing but empty words.
what he is DOING demonstrates his true intent, which is for now to keep using. and steal from you to support his habit, DESPITE the fact you have a baby on the way.