I can only speak from my experience. I don't know many women who are in my situation, so this may not be helpful to you. But, I hope you can at least find something that will be helpful to you in this. I am a high-risk patient because of my health problems. I was perfectly healthy, with the exception of cysts on my ovaries and endometreosis. I went into the hospital for an out-patient surgery because of those things being wrong because I wanted to get pregnant and was having problems doing so. During the surgery, my doctor hurt me by cutting my Vena Cava an inch and a half and I bled to death on the table. This resulted in a 2 foot blood clot. It has grown 4 times since it developed. I am on high dosages of Coumadin (Warfarin). For a woman to get pregnant on blood thinners, she has to stop the blood thinner by mouth and take shots daily in the stomach because the medication by mouth will hurt the baby, possibly kill it. Blood thinners by mouth often cause miscarriage and the mother could bleed to death. Mothers in this position have to be monitored very closely and at some point during the pregancy most have to go into the hospital for a good part of their pregancy. Blood thinners cause brain damage to babies if they can be carried until a safe time for delivery. This puts the mother and baby both at risk. I was on bedrest for a long time at home then I was in the hospital a long time. But is was so worth it! I will be on blood thinner for whatever is the remainder of my life. There are alot of reasons for women to be at high risk. Blood pressure, problems with their sugar, baby not positioned correctly, birth defects, so many things that we never think of unless we've gone through it or know someone who has. I think the most important thing is to find a high-rick doctor that sees alot of patients and has a great reputation and let him or her evaluate how high the risks are. PLEASE PLEASE check out your doctor before you use him or her. I didn't. I trusted blindly. It was a huge mistake on my part. A well-established doctor should be easy to check out to make sure you have the best of care possible. I found one but he is over 2 hours away from me, but worth the drive to have a doctor that is good at what he does. I don't want any woman to be able to type something like this from expericnce like I am. I know that I am in the minority with why I am high risk, but I hope somehow this has answered your question. I will be glad to answer any that I can to help you. Just PLEASE check out your doctor. That is all I ask.