Oh, yes, there are such differences in the maternity packages... I am about to hand in my notice, and I keep thinking, what the hell am I doing? I currently work for the university, they have a great maternity package - 18 weeks of full pay, then 21 SMP. In my new job, all I will get is MA, as I won't have been there long enough for qualify for their (very measly) maternity package. Hmph. Not sure how we will manage, I think it will boil down of reducing DS's childcare hours, which I am loathe to do. Not only because it does him a world of good, but also because it gives me a much-needed break! We'll have to see...
I had MA only last time as well, but no childcare costs, which was doable.
I'm thinking of working until week 35-36, depending on how much annual leave I will be able to take. And only 9 months off this time... Probably won't be able to do any longer financially, depending on what state my savings will be in by then 
Diege 12 weeks leave, that is tough... Mind you, in the US, they don't get even that!
Finally some symptoms have started to kick in - I'm getting a lot of dizzy spells at the moment, anybody else get that? And feeling very 'bleurgh' on and off in the last few days, without actually being sick, though. I need to be really careful in the gym, when getting up from the floor etc. at the moment.
Had my haematology consultant appointment yesterday, and now have my heparin prescription, phew! One worry less.
Still waiting for the mw to get in touch for the booking appointment, getting a bit impatient - it's meant to be done here by 8 weeks, I'm 6+4 now...