Possibly. So you must have your eyes open on this, and if necessary, take full responsibility, warming up, stimulating, etc.
If it was little Black that she placed on the floor, is this her rejecting him?
Make a little nest of fleece (feels almost like moms fur), a plushy toy animal, and preferably a heating pad on lowest setting, under part of the little nest.
Alternatively, you can carry the little one at your chest, (here woman caretakers has some natural advantage over male caretakers. perhaps in a little sack.
Good luck!