OH and I got BFP at about 6 weeks and told our parents at 8 weeks (although thought we were 10 weeks at the time based on LMP) My mum couldn't contain her excitement and told most other family members after our scan at 9-10 weeks, but I've not told anybody else personally yet except one close friend.
Got 12 week scan tomorrow, so hopefully if all is well then I'll ready to tell other friends and colleagues. I'm a bit bloated round the middle but not noticeable to anyone yet, they probably just think I've been enjoying one too many pies!
It's entirely up to you when to tell folk, most say they wait til 12 weeks as the likelyhood of miscarriage is drops then but just whenever you feel ready.
All the best,
Sarah x