we had our puppy potty trained but here the last few days he's been peeing on the bed, floor, porch,…

I honestly don't have the answer but I've seen someone post similar to your situation. They were told that the puppy or dog was having a hard time adjusting to having a new baby in the home. So to give him/her time that he/she would get back on track.

He might have a uti

Also hitting him will only make him ashamed to go and then he will do it in a place you won't find it for awhile. You probably need to just start letting him out more often puppies go through growth spurts which can cause frequent urination but if he was already potty trained and is now doing it everywhere my bets are on a uti or some other bladder problem

Both of what the other posters said, could be a bladder issue but it's probably the new baby. Hitting them doesn't work, I would just start taking/letting him out every so often whether he's acting like he has to go or not, and rewarding him when he goes outside, basically potty training all over again

I let him out constantly but I thought it was a bladder issue as well . but he has been acting funny lately like depressed or something I was thinking maybe cause the baby being here and not getting attention like he was getting before . my fiance just got a job and works all day which doesn't help either and he grabs him , kinda shoves his snout in where he has peed at and pops his butt my mom told me that's really the only way he's gonna learn @ash2016 @ashsloan @bianca_rose