Scared to tell people about my pregnancy

Emma • Mother of our lovely rainbow baby Annabelle.

I've had two miscarriages and an ectopic pregnancy. I'm now pregnant again, and we told both of our parents and siblings as soon as we found out. I'm now 14 weeks I've had my scan and everything is going well. However I'm still debating whether to tell extended family and friends our news. I thought I'd be able to once I'd had the scan but I still feel slightly nervous. If I don't do it now when do I as well?