Welcome pug
I'm 10 weeks tomorrow and am mightily relieved to only have week 7 level nausea (for me) today as just survived 2 days of feeling very sick. All that sleeping yesterday probably helped. I just want to go out and do loads as I feel so much better, but don't dare overdo it cos I think I will suffer tomorrow if I do.
I initially only told a small number of close friends, plus both sets of parents, but in the last 2 weeks it's slipped out to a few more, but always to friends who I know I can rely on to keep the secret. It's been really helpful actually to tell those extra friends as they've had some (not too much) good advice and also they've been able to cover for me on different things. Work don't know yet though so I'm being super careful about not telling peeps with links to my work.
Think I'm going to struggle to keep it hidden now thoug, enormous boobs and a visible bump, not to mention horrendous nausea! Roll on the end of term (3 weeks to go!) 
Right off to do that shopping trip for cake, ice lollies, chocolate and more cake essential food items full of nutrients for little prune.