Hey Peanut - we have the same due date! 
I'm enjoying this time, to be honest. I had a difficult first trimester, but I've been lucky enough to feel strong and healthy over the past few months (two ugly head colds aside). I love feeling the baby moving - so very cute.
We still have lots to due - I think we were both in denial pre-Christmas. Nursery to organise, hospital bag, baby stuff to get. But yeah, hoping to take it all in stride.
Chloe I hope the time goes quickly for you....I've no doubt I'll relate to wanting this all over once I get a few more weeks down the line. 21 March is my birthday, so it's a great date. 
I recently finished reading Margaret Atwood's 'The Heart Goes Last' and found it totally absorbing, so maybe give that a go if you enjoy her books. Otherwise, box sets, cooking for the freezer, chatting on the phone or following the punch and judy show of UK politics are decent alternatives....
This one may mark me out as being a completely doltish marshmallow (please be kind), but I've also been writing letters to my little one. Not often - just every month or so - talking about my dreams for him/her, funny little pregnancy stories I might forget, how much I'm thinking about them. Maybe give it a go? I always feel very warm and fuzzy afterwards anyway. I write mine on the laptop, but I read somewhere about someone setting up a designated email account for their little one to send across scan pics, thoughts, emails, etc. - the idea being to give access at 18. Presuming we don't all have chips in our heads by that point!!! Anyway, again, sorry if that one's a bit soppy....