Even if abortion is illegal in your nation, she should go to a clinic or hospital at this point and tell them that she thinks she might be pregnant but that she's experiencing some odd bleeding and may be in the middle of a miscarriage. Do
.N.O.T, under any circumstances, tell them that she took pills. If they start hassling her, tell her she must not break down and tell them. I don't know what the laws are in your nation but she could be imprisoned if they even suspect that the miscarriage wasn't "natural".
At the clinic or hospital, they will be able to tell her if the miscarriage is complete or not. If it's not, she will need to have a d&c or she may get an infection and become very sick. She needs medical care at this point to ensure that she does not become sick.
Keep us updated on what's going on.
Peace,
jenn