Nope I've never done any drugs except smoked a little weed. I have no criminal record and have a university degree. I don't think a single person in there family has gotten out of 9th grade. I also found out tonight that her parents have been investigated my CPS before in the past for drugs. Anyways fuck it I'm on my way to either tell them what the fuck is up and get out or taking him to my parents for good.
You tell them nothing, you owe them nothing. You pick up your son, you file for emergency temporary custody, you meet with the lawyer and keep it movin. They are not your family you are not married to the bitch, you owe them nothing, tell them nothing. The court has not established any type of custody yet therefore it is not kidnapping, especially for removing your child from an unsafe environment. Your parents should be filling you in on this shit already.
edit: Saw your post getting your son, congrats. Now be ready, the baby mama is going to get crazy and harass the shit out of you at first. She will go in two directions, either she will really clean up for her child, or she will get heavier in drug use and not give a shit. Neither of those are your problem. Stay away from her, bitches (no disrespect to real women) are sheisty and will try any trickery they can to flip on you. Remember, every step you take moving forward needs to be about your son, not anyone else.