Confused.....silly question please help??

[TillyTommyTootToot]

I'm just wondering when people say that they tell everyone that they are pregnant at twelve weeks is that twelve weeks since the start of your last AF or twelve weeks from conception. I'm very excited and working out when to tell people I am currently two and a half weeks since inception but obviously just over four since AF! Tia

You are 4 weeks pregnant, people generally wait for the 12 week scan which will be between and 11 and 13 weeks probably, so you have 8 weeks till scan time. Congrats!

Until your scan when your date might change a little, your pregnancy is dated from the first day of your last period. So officially you're 4 weeks pregnant.
Congratulations :)