Love the idea of a beach announcement,
I had a private scan at 7 and 9 (I think can't remember exactly but the first one my moved my date back 2 weeks to I went for another) with my first and for me I needed to no there was a heartbeat and things were progressing, if things were/are wrong I'd rather no as early as possible. I've had 4 early miscarriages before my son and my best friend has had a few mmc found at her 12 weeks scan so it was in my head and having seen and helped her deal with that I'd just rather know in advance. I said to hubby I'd probably only have 1 early scan but I'll prob book another one at 9/10 weeks, I'm a worrier and I don't mind spending the money to put my mind at ease for a little bit. Emma's right though it'll either calm you or worry you more, I'm a worrier by nature so it does help for a while but I worry again.
I've been looking up data though and I think if I remember right if there is a heartbeat at 6 weeks there's an 85% chance of a hb at 12 weeks and at 7 weeks it's 93% so maybe best to wait till 7/8 weeks then it's not too long till the 12 week one xx