I would suggest that she schedule an appointment with her family practioner or gynecologist for tomorrow. It would be best if she could get in to be seen before it resolves so the provider can see what's up.
If she loses a lot more blood tonight (filling heavy duty pad in less than an hour through 2 or 3 pads), she should go to the ER.
If she loses a lot more blood tonight (filling heavy duty pad in less than an hour through 2 or 3 pads), she should go to the ER.