Hi

At your 12-13 week scan they check for any signs of downsyndrome and give you a blood test. it will be a low med or high risk result.

I don't nkow of any other genetic tests, what problems would you want to test for?
any problems that might or might not arise during or after the birth is out of your control anyway. honestly i would mention it to your midwife if it makes you happier but i would think she would say not to worry.

just enjoy your pregnancy and focus on things like the baby room and the cute clothes you can buy, and names etc. us pg women panic enough without adding to the mix.and don't worry about your husband not knowing his biological history. we don't know much about my DH's either. and my son is perfectly healthy.

good luck with your pg....