hi, I dont have any experience of triplets personally or through my friends but I just wanted to wish your friend well. Once thing I would say/suggest is that I did have a twin pregnancy and that failed because of a placenta issue, which we have since been told may have been preventable had I have been prescribed aspirin and also given an ultrasound scan at around 17 weeks which is known as a vasculature check. I am sure she will be monitored very, very closely, but if you can somehow discreetly mention these things to her so she can ask about them, and has every chance of a successful pregnancy. On a very positive note, when I was in hospital after having my twins, there was a mum who had triplets. They had to spend 2 -3 months in hospital as they were prem obviously, but she took home 3 healthy baby boys so there is every chance she and the babies will be ok.
Sending lots of positive vibes to her xxx