I think at 7 weeks I'd wait a bit longer, just in case. But I'm hoping and praying you won't have to worry about that coz you will see that gorgeous little gummy bear with a lovely strong heartbeat!! Can't believe you will be 7 weeks already, well I guess I am too but it seems to fly by in a way and drag in other ways!! Glad that the symptoms are all sounding good too, although poop aversion must be quite hard if you have a dog! Can your oh not do it all?!