Clean the house REALLY well.
Wax the floors, polish the counters, toss out all the old magazines, newspapers, dust like crazy and vacuum, vacuum, vacuum.
Make the beds everyday, pick up all the toys every night.
Make it look like the photographer for Our Best Homes is on the way over.
CPS is so overworked that, when they do show up, they will think they have the wrong address.
Relax (after the cleaning is done) and put your marriage back together if you can.
Make sure the child(ren) knows NONE of this is their fault and do it without badmouthing your husband.
I wish you the very best future possible.