I had an ectopic and a few miscarriages before I successfully fell pregnant and it was pure torture seeing my friends so easily get pregnant, one by one, as I never thought I would have a family. I cried and cried and tried to put on a brave face as I watched their bumps grow bigger and bigger. Watched them make all their future plans with siblings as we were planning for a future without children. It was raw. I found it hard to be good friend. I did my best. I was always there if they wanted me, but I did distance myself a bit.
With this pregnancy (DC3 now) I have a friend who has completely distanced herself from me after 8 failed IVF's (she already has one child), and although it hurts as we used to see eachother every week and she was a great friend through my last pregnancy, I understand that it might be hard for her to be around me (especially as this one wasn't planned).
Your friend is obviously going through a tough time, and granted it must have really upset you to have such an illogical, agressive reaction. She seems very emotional and maybe with time she'll come around and realise that she doesn't want to lose such a friend.
I'd give her some time. After all, I bet you were a great support to her during her abortion, and as a friend she should also be supportive and happy for you as you start the exciting next chapter of your life.
I don't think I'll be able to be a part of my friend's life for a while. It makes me sad, but I understand. Sometimes these things happen.
Good luck with your pregnancy and I truly hope you don't let this stop your exciting time.