Rhogam shot....Confused?!?!?!?!

Hey everyone, i have a question for everyone out there, im asking for my friend..she cant seem to get any answers so im  wondering if anyone has been through this. She is currently 9 weeks pregnant. about 6-7 weeks in she was having some spotting, nothing crazy..i told her i thought it was normal but she should call her dr. to get some peace of mind. then last monday she started getting a different kind of discharge, it was pink/brown (no cramping). She called her Dr. and the nurse there told her it was normal and since she had her 8 week apt. in 2 days to talk to the dr then about any other concerns. Well her apt came and during her internal exam the dr sound some blood...then they also noticed that her blood type was A-, so she had the RH factor (why it took them this long to realize that is beyond me, as soon as she complained of spotting they should have looked at her chart and saw that) So since there was concern they told her to come back later that say for an internal u/s and get blood work and the rhogam shot (because her body was attacking the baby as if it were an infection). The u/s showed that the baby looked more like 6 weeks instead of 8, and the heart rate was low at 108 when it should be closer to 170s (she is a smoker). Her blood results came back and her hormone levels were 1500, low for 8 weeks. While at the hospital she started to bleed, not a ton but there was definately blood. They sent her home and told her to come back for more blood tests for the next few days and another u/s in a week. They did not tell her that she was miscarrying, but they said it was a possibility that she started to miscarry on the monday before...they would just have to wait and see. She cant seem to get any answers on what the odds are that the baby will survive. Can the baby bounce back even though it seems her body as already started to attack the fetus and who knows for how long??? if given the shot in time could it save the baby? Its been 5 days since her first blood work and she has had some bleeding everyday since, not a huge amount, and cramping here and there. 
Any info we have found says that they give the rhogam shot after a miscarriage, but they arent saying that she is actually having a miscarriage. Would it take this long to miscarry?
All she can find out is that its just a waiting game? its her first pregnance and Its a rough time for her right now and some answers/input would be great! thanks!