Thank you all for your lovely messages and support
As for news, there's a little bit of both.
For the good: The little bean is growing well. We saw a lovely strong heartbeat today, and looks as it should. It's astounding what a huge difference one week makes. The thought that there's a little heartbeat already flickering away inside is amazing. We ladies are truly privileged!
Now for the not-so-great. They're concerned about the implantation site. I think I mentioned earlier that bean has implanted towards the left cornua (horn of the uterus, where the fallopian tube joins it). Depending on how far left, it can be very risky. The midwife sonographer was unwilling to give me the all-clear.
A consultant looked at my scan afterwards, and wants to scan me herself. Ergo, I have another scan booked in 10 days from now, when she will "decide what needs to be done". I unfortunately didn't get to speak to the consultant myself, only to a nurse who didn't have any more details, so I could not gauge how concerned she was.
I'll be on tenterhooks until the next scan. It's comforting to know that little bean is growing well, but I hope he/she grows more towards the uterine cavity rather than towards the horn. I'm tempted to sleep on my right, in the hope that gravity helps, but that might be a ridiculous idea
Thank you all, again, for your support.