Thanks for congrats Wilting! I am, as you say, over the moon. Although also wary. But yes, it's funny how I had resigned myself to definitely not conceiving this month. Bought pre-seed lubricant for next cycle (!), and had my laparoscopy and DH's sperm test booked in, just to make sure all was well. It just feels like a long, long stretch ahead until we're in that 3 month safety zone. And I wish I could find a way to keep my mind off things but after two miscarriages I'm now paranoid about doing any exercise (which is great for keeping my mind off it - ironic!), drinking coffee and alcohol (two of my greatest pleasures), having sex (less of a pleasure but still quite nice sometimes ;-)) etc etc. It's silly as I know a little bit of all these things won't make a difference to the outcome but twice bitten now, it's hard to be rational.
As for you - I think you should defo follow your DH on his sick granny visit, but that's me. It might be the one night that everything falls into place, iyswim. Do you have to hang around the hotel? Is there somewhere else you could go with the kids?
I wish I could press a fast forward button to two months time, so I can tell everyone, and tell the kids and exhale... but of course as you say - at least I've got past that first major hurdle. Actually getting PG. 
Where are you now in your cycle wilting? just getting to end of AF?
thefalconsmistress welcome and all the best - although this is a semi-zombie thread now - but I'm still here, so's Wilting. I have two DCs aged 6 and 8 (just) and have been ttcing number 3 for almost a year with two MCs. Just got a longed for BFP. It'll be a big gap if it happens, but I'm delighted.