Twice I've managed to find the heartbeat for a few seconds before losing it - the last time was 2 days ago. My midwife tried to find it yesterday and couldn't, but she said she rarely can hear it at 10 weeks.
As for the SAHM/D and housework...honestly, I often do the bare minimum and not much beyond that. I run the dishwasher daily and do and fold/put away about 1-2 loads of laundry a day (that's what having 3 little boys, two of whom wet the bed and one of whom is in cloth diapers means). Other than that, I might pick one project and do it - like maybe I'll move the furniture in the living room and sweep underneath, I'll clean a bathroom or maybe I'll clean the kitchen floor. My place always looks like a wreck, though, and I don't have the time or energy to care about that. Yes, I do get a wee bit of downtime while ds3 has his nap and ds1&2 play their Nintendo DS's, but that's the time of day I catch up on email, read this site and do the bits of freelance writing I do for some extra money. Actually, to think of it - I do most of the few household chores in the evening while the kids are asleep - that's always when I do laundry and dishes - in the day I spend more time grocery shopping, baking and planning/cooking meals.
Anyway, to make a long story short, yes there are some supermoms/dads out there who can manage being a SAHP and keep a beautifully clean house, but I'm definitely not one of them and perhaps your dh isn't either. If I were you I'd cut him some slack - days go past when I don't talk to any adults other than my dh and I break up about 100 fights a day between my older sons, and I'll spend an hour cleaning something only to turn around a minute later to see my ds3 has completely undone all my cleaning - honestly there are days I think my DH is the lucky one getting to spend the day doing work in his quiet office and having lunch and socialising with his (adult) colleagues.