Thanks everyone for your well wishes - it is so nice to share this journey and feel your support.
ET was not exactly as I'd hoped. After starting with 17 eggs, 13 fertilised, and 7 we had yesterday, we were down to just 2 C grade embryos today. So both have been put back and now I just need to try and relax and keep everything crossed.
Seems we may finally have a bit of an explanation as to why we've never been pregnant before though - I'm 31 and the embryologist said she'd expect better quality / more blastocysts for someone my age considering where we started.
The others are going to be cultured until tomorrow but embryologist was honest and said she doesn't hold out much hope for them.
Anyway, I've got to focus on the 2 that are now in my womb. I'm a mix of emotions - disappointed that there is nothing for the freezer, so we only have one shot at this, but also ecstatic to have got this far and be PUPO! What an emotional day.
I will be trying to resist the urge to test until 13th March. OTD is 15th.