Thank you so much ladies - especially crumbletastic and mummynumber2 - it helps so much to hear that.
TMI ALERT: It's enough to mark my knickers but has been since the beginning (I noticed brown blood stains in them on NYE - 3-4 hours before they hadn't been there) but it's maybe 4-5 5p-sized stains a day (on a towel now, obviously), and little bits when I wipe but only the first time I wipe each time I go to the loo, after which it'll be clear or non-existent. SO sorry for the details 
Anyway, there's been almost nothing since this morning - nothing on the towel, and very little when I wipe, so fingers crossed it was just a moment.
I called the midwife a couple of days ago and she said to go straight to the assessment unit if it goes red or heavy. It's definitely not heavy and it was only red on the tissue twice (I'd say 50p size though). So I'm just keeping an eye on it at the moment. But thanks SO much for the stats and personal experiences, - helps keep it in context.
Like the new thread name ideas nmcb - sorry you're off house-hunting. I love house hunting, though. I look on Rightmove all the time at houses I can't buy. Weird obsession. And good luck with yours 8rd and neenewps. If it makes you feel any better about renting, we bought a house on 31st August 2007 with a 100% mortgage, and now we're 30k in negative equity and need to move and can't without renting ours out (for £500 a month less than the mortgage costs) and renting near my work. If we don't get amazing tenants we're screwed ... so buying can be a bad thing as well as a good thing!
Liking the sling talk but confused by it as I haven't started looking at them yet. Have decided on a Maclaren Techno XLR pushchair and car seat as they're reduced on Tesco/Mothercare websites and we've got vouchers for both, and they've got good reviews. Just need to find out if they'll fit in our stupid bloody Nissan Micra 