Each to their own. I told every one i possible could both times at 4wks. I was too excited to keep it a secret. Alot of ppl worry about waiting for the 12 week scan but my thoughts were if i were to MC or anything unfortunate was to happen at least i'd have the support of everyone around me iykwim. My sister told every one and MC at 10wks and is now TTC again but says she wont tell anyone till 12wks but in reality i think she'd need the support of us iykwim.