what do you suggest

Try catching the cat going and grab her up and put her in the litter box. This is what you do for a kitten, it should work for an older car. You may have to do it several times before he gets it.

get a bottle and dilute white vinegar with water and outline the room except the litterbox, the vinegar will remove the odor and it makes the pet think they are in a new territory, except they smell their scent in their litterbox.. this worked for me

And if you can, collect the urine w/plastic sheet or wax paper and dump into the litterbox before you clean the floor...

Maybe it sences you prego and is freaking out?..

Likely, he smells the sewer gasses coming up thru the drain and is wanting to "go" where he senses everybody else is "going". We had a cat that did this. Hated the feel of litter and only "went" in the shower over the drain. You could try different litters also, including those made from alfalfa pellets or sawdust which might feel better to his feet.

Consider maybe training him to "go" in the toilet? You can purchase kits online to do this. Many people have a lot of success doing this, and the advantage is that you no longer have littler to clean or buy! I never taught a cat to flush tho. LOL!

you can try to clean the area with Nature's Miracle. you can get that at petsmart. if the cat goes once in a spot, the smell is difficult to remove and they'll want to go there again. that product works really well. he might be pissed too that he is locked in a room. have you tried switching litter? sometimes cats get fed up with what they've got. if you use the scoop litter, try something like the crystals, or Yesterday's News, or shredded newspaper. a lot of times that helps too. good luck! you need to get that urine smell outta the house before the baby gets there!

Make sure the cat doesn't have a urinary tract infection, or crystals in its urine, which is both common in cats

well i have gotten the smell out of the house and we think he is upset being pinned in the room but when we was in the apartment it was the sink he use to pee in funny cat but we decided to put 2 litter boxes in the room one on the normal side and one where he was peeing and he hasnt done it since but the litter i know he likes the worlds best cat litter the best but we cant afford that at the moment he has been using this littler now for a while dont seem to bother him
THANKS FOR ALL YOUR HELP WITH THIS SITUATION use to work at petsmart i should of known this but its been 5 months since i worked there and ive been a bit out of it lately and the fresh n clean works a bit better than the natures miricle