I agree with @mushy. We told close friends and family about IVF, but we're certainly not telling everyone. Once you're pregnant does it matter how you got that way? That said, if anyone asked directly I'd tell them. I'm all about breaking the IVF taboo silence.
@Twinkley, not sure I have any advice hun but two weeks for another scan seems crazy! I ended up in the ER for a lung scan at 6w4d, and along with checking everything else, we got to see the baby for the first time, along with the heartbeat. But we were a 5dt. Can you get advice from your FS?? Two weeks seems painfully long to be in limbo.
Maybe get another ultrasound ordered by your GP?