Hi
I'm so sorry.
My daughter had Edwards syndrome (a similar issue).
You mentioned in you post that you didn't feel like you had options, but I wanted to let you know that may do, even if they weren't the options you were hoping for.
I know Patau's and Edward's aren't exactly the same, but the prognosis is almost identical, I think.
It's not a choice you ever wanted to have to make, but you do have the option of whether to continue the pregnancy. Your consultant will be able to tell you how the Patau's has affected your baby, what's likely to happen if your baby survives the birth and should be able to arrange for you to meet with a neonatal doctor to discuss what's likely to happen if your baby survives the birth.
I can't tell you what the right decision is - I can only tell you that we decided that, based on how the Edward's syndrome was affecting my daughter, we decided to continue the pregnancy.
We lost our daughter during the birth, but we found it easier to deal with knowing that we made the right decision for us and our baby.
The decision that we made isn't necessary the right decision for someone else - only you can make that decision.
Whatever you decide, ask about the bereavement midwives at your hospital. It's really useful having someone to contact when things are tough or when we needed an answer about anything. They will also help you plan for meeting you baby - what memories you want.
We spent a day and night with our stillborn daughter, bathed her and read her stories. We bought clothes to dress her in, I had a necklace where she had half and I kept half and we had a couple of comforter toys to stay with her and an identical one for us. Having these memories has made it easier for us. In a way I feel lucky that we had the opportunity to have these things ready.
I hope you have the support you need to make the decisions you need to