marina
yes the clotty bleeding could be the fibroids necrotising.
if i remember this correctly - pregnancy hormones stimulate the fibroids to grow. they can then "outgrow" their blood supply and will degenerate, causing the bleeding and possibly pain as well. i was told this could happen throughout pregnancy, but luckily in my case it stopped after approx 7 - 10 days (8 - 9 weeks pg). if your friend has fibroids she is probably used to heavy, clotty periods - a key symptom. it must be extremely distressing for her as one of the key indicators for miscarriage is also clotty bleeding...
we found a lot of material on the net on this - which we have now disposed of unfortunately. try google and input "uterine fibroids". alternatively, try www.netdoctor.co.uk - have found this very useful before. i don't remember reading about late miscarriage risk from this condition, but it could possibly affect the likelihood of a vaginal birth - depending on the size and positioning of the fibroids, e.g. a large one v. near the cervix.
can she kick up a fuss to be seen sooner? i think regular monitoring is key with this. she must obviously get every bleed checked thoroughly. i am a big fan of the early pregnancy assessment unit at st thomas's - it's a walk in, office hours mon - fri. if she is based in london maybe she could go there and be seen more quickly by one of the doctors there? just a thought.
as you know, after the initial worry, i had a trouble free pregnancy and gave birth to a healthy, normal baby, so it's not necessarily all over.
one final thing the pain can be really awful, it was so bad i was off work (and i was used to painful periods etc because of the fibroids - another symptom), so she should check out which painkillers can be taken in pregnancy, rather than just suffer on. i was given a hefty dose of something rather effective!
hth.