When did u show/ announce?

Just found out I'm pregnant 5 weeks exactly today . This is my first pregnancy and small to start 5'7 128lbs .. I don't want to announce my pregnancy until 14 weeks to make it past the high risk 1st trimester.. I know everyone's different but was anyone able to keep it hidden this long? Luckily it's winter at that time so big cozy sweaters will be utilized :)