my top 5:
1. Down's or some other genetic abnormality due to my age and poor quality eggs.
2. having to do something about the above.
3. not being able to conceive again due to age, pcos, and just plain leaving it too late.
4. poor genetics from DF - he is adopted and has no family history other than knowing his birth parents had to give him up due to alcoholism
5. my family not accepting my pregnancy