Potty Training

I’m in desperate need of help. I have a female 15 month old corgi, 18 lbs. We’ve tried everything when it comes to potty training. Confining her to spaces, keeping her on a leash, positive rewards, routines, etc. We have a baby due in June and don’t know what else to do. I’ll take any advice.

Right now, she doesn’t signal to us when she needs to go out. She goes out every hour, on the hour. She gets instant rewards after going potty/poop. We’ll be outside for 10-15 min and she doesn’t go, come back inside, back out again 10 min later. We do let her free roam because keeping her confined truly hasn’t made any sort of difference. The only place she “goes” poop is on 1 spot on our carpet. The same spot every time (if she does go inside.) We’ve taken her outside with the poop before, to show her it goes outside and that does nothing.

Is it by chance the carpet in the one spot that she thinks it’s okay to go? I’ve shampooed it, had it professionally shampooed, and now we’re replacing it in a few weeks with vinyl flooring. I just don’t know what else to do with her. Mind you, we have a 4.5 yr old corgi that we had absolutely no issues with potty training. Help.