Thank you for the advice
Yes, Sam definitely is young to be away from his mother, but the lady whose dog mothered them was not happy about her purebred pug mating with the schnauzer and was anxious to get rid of them asap so she made sure they were weaned at 4wks and was going to take them to the grocery store and give them out, but our aunt (the schnauzer owner) offered to take them to find them good homes, so that's how we ended up with him so young.
I don't know much about crate training except the little I've had time to read in the last day, but what I've been trying to do is have him eat, take him out to potty, bring him back in to play for a bit, and then put him in the crate to sleep and give him a break from the kids, and repeat every few hours.
At night I really cannot get myself up to take him out though. I'm exhausted enough and can barely wake up to roll over and feed my baby, plus if I get out of bed it takes me forever to get back to sleep, I would not get any sleep at all if I had to actually get up with the dog too. I know that sounds selfish, but I can barely function on what little sleep I get right now, any less and I'd be a basket case. I would have my husband do it, but he sleeps like the dead and once he's out nothing wakes him up lol.