If she is used to wearing clothes ....a onsie with a hole for her tail?? I had a rottie that we bred and she bled a ton! I dont think your babies will bleed near as much. Oh and put sheets over everything....dark ones.....especially where she likes to play and lay.
its not too bad. They also have little undies and pads at the pet store but they can get them off. also I have heard of medium sized dogs wearing pull ups with hole cut for tail they have really thin ones now but I cannot see them fitting our tiny breed...but maybe??? Hope this helps and good luck with your young woman!