pregnancy nerves

I found out I was pregnant 3 weeks ago and I'm 8 week I can't stop taking tests because of a previous miscarriage I just want to tell people I am pregnant because I'm so happy to be but knowing I can't tell people until 12 weeks kills me I mean I have an appointment with my midwife on the 21st when I'm should be ten weeks but she thinks I maybe further along due to my last period being 3 days long and not heavy when I'm normally 7 days long and heavy I guess I just wanting to tell people but instead of telling people who I know will tell other people I know I thought I would just let it out on here and pretty sure I'm pregnant with the strength of this positive just wanted to tell people anyone else feel like they want to tell people early on but know they shouldn't because they are scared of a miscarriage