@MrsMGE - I think it's unlikely that within the next week or two most office workers will be expected to go back into work, for a start it will take most organisations some time to get up to the required standards and I suspect a lot of employees will refuse to physically go into work if there's still the opportunity to work from home. I agree with @Knotemma that if your work does start to put on pressure to go on to the office that it's probably worth telling your manager and asking them to keep quiet about it. There will be many people who don't want to go into the office for all sorts of reasons so unless you work in a very small team I doubt you'll be the only one. I was made to WFH a week before the rest of the team as my line manager knew (and also knows about my miscarriages) but as far as everyone else was concerned it was because my DH has a underlying health condition so I wanted to protect him. It was somewhat ironic that in spite of being the first one to move to full time working from home I fell ill within a couple of days with far worse symptoms than any of my colleagues but that's just my luck I guess! Worse case scenario if you don't want to tell anyone at all you could always say that you or your partner has possible symptoms so you need to continue working from home for another two weeks and during that period you could have a scan if you want? But as @Knotemma says try not to worry yourself too much, at the moment everything is hypothetical - other than the fact that today you are pregnant 
@CarterBeatsTheDevil we all know the feelings you're describing, the early weeks are awful and symptoms so inconsistent with plenty of ladies feeling nothing at all at your stage so please try not to worry. I felt exactly like you during my second pregnancy (which didn't work out) and the current one which is now at 19 weeks. It's just impossible to know one way or the other and hard as it is all you can do is try to keep busy and remember that regardless of your past experiences a new pregnancy usually starts with the odds in your favour.
@TunnocksTcake I'm still not feeling definite movements, I have some popping sensations sometimes which might be, but not enough to feel certain. Everything I've read says that there's no point trying to analyse movement prior to 24 weeks so I'm trying not to worry for now, it's my lack of weight gain that is concerning me more even though there's no denying the rather sizeable bump that has appeared over the past 3 weeks! I'm counting down the days until next Monday too, I'm working from home which I guess helps pass the time a bit quicker, also been working on a painfully difficult puzzle (Disney themed!), doing sudokus and reading to try to fill the time and distract me from browsing the internet for baby things.....
@MOGMOGMOG85 sorry to hear about your rat. We used to have rats when I was a child and they were such friendly and fun characters, it's always heartbreaking when one dies. We will all be crossing our fingers for you on Wednesday, hopefully some uplifting news coming your way.
@Lori86 I had a lot of upset stomachs and related cramping throughout the first trimester. It's really disconcerting but unfortunately really common for your digestive system to go haywire when your hormones are surging. Hopefully it'll be a one off and no EPU visit will be required.