We've had a few tests and things - two ultrasounds - I think the first was at the 12 weeks. Saw the little man/woman kicking away.... heart beat and so on. Though the baby looked huge on the monitor the sonographer abruptly informed us that it is only 7 centimeters long at this stage. Tiny! And then at 24 weeks something a little more strenuous... requiring a blood test. This one went well too though. Everything looking good... we got some video of this one... I will try to post it.
Health wise, things have been quite simple for us so far - a few extra aches and pains, and Iris is definitely less mobile already. What is far more difficult is finding the right things for the baby... there are so many products available... and to some degree what you'll buy depends on your style as parents, where you live (apartment / house / with other family etc etc) and what other friends and family members might be able to give or loan you.
So many options - I think I will blog them one by one... obviously we'll let you all know what seems to work best for us too!