mizzannie - sure you will feel the movements soon - and then you wont get a minutes peace from them soon after.
and on prams -as others say, i dont think there is a magic solution unfortunately. we ended up having three, although one of those is a specialist running buggy. we have a bebe confort loola as our first one, and a maclaren (cheap, light etc) for a run around one - just not suitable from birth. the loola is fine - not too heavy, folds reasonably small, seat goes both ways etc - not a great basket but solid enough to hang things from the handle bars.
agree with swaliswan that you cant always (ever?) find one buggy to do everything you want.
for this one, i think we will try to get by to start with using the loola/maclaren for ds and a sling for dc2 as I loved my didymos with ds when he was wee - think i might get a lighter weight one for the summer though.
had midwife today and heard the heart beat - was fantastic. reassured me a lot that things were ok.