Remember, someone's FUTURE this is that you deal with.
The child's DNA can be sampled from the amniotic fluid, so completely non-invasive it is to the child. The doctor either lying is, or kept up with prenatal medicine for the last 30 years he has not.
Wait for the DNA test, boy. To impulsively sign the birth certificate, well, that may lead to heartbreak, and heartbreak inevitably leads to the Dark Side.
Take my advice yourself, young Jedi, or to your friend pass it along.
“The child’s DNA can be sampled from the amniotic fluid, so completely non-invasive it is to the child.”
Well, kinda. The amnio procedure carries a small (like .2% or something, but 2/1,000 add up in a big country) risk of miscarriage.