@Highlandmama - Thanks so much for the reassurance 
I will try to follow your good advice! I've been doing a similar thing the whole year so far, as the fertility worry has been hanging over me - but despite that (and covid), we've done lots of fun things as a family and made some great memories. So I won't look back on the year as a tough one, even if it was sometimes.
You're right that I need to continue like that. In a way, being in lockdown makes it a bit easier, as I don't have the pressure of hiding it from others (whether or not things go well). I'm at such an early stage.
A lot of my assumptions are irrational... for example, because my first (and only) pregnancy was straightforward, I feel like this one can't be!