concerned heparin and baby aspirin for next pregnancy

[sunshine13]

Sorry I have never done this before so forgive me it I write too much I am not familiar with any of this.
Back on March 5 2008 at 19 and a half weeks I gave birth my daughter who my first child do to a very severe case of preeclampsia. She was stillborn and even if she wasn?t they told me that there was nothing they could have done even if she was born alive. This was the worst day of my life having to give birth to a baby that I would be able to keep. We had just found out that we were having a little girl the week before all this happened. Her measurements were a little small and they we not able to get them all because she was moving a round too much so I was to come back 2 wks later for another ultrasound.
My ob and the high risk specialist I saw have decided that even after the blood tests came back negative for any blood clotting disorders they still want be to take baby aspirin and heparin with my next pregnancy due to my placenta having a lot of clotting. They are concerned that I may have some clotting disorder that is yet to be discovered being the one they were checking me for was just discovered 5 yrs ago.
It is all so much to take in, I am concerned about taking the medication but then I am afraid that if I don?t I could very well end up losing another child. I am concerned about the side effects, has anyone taken the heparin and baby aspirin? What advice can you give?