ready to start

I know this may seem a little naggish, but I know I can not be the only one who gets irritated by people telling me "Don't shop this early, that's bad luck"..... I'm 14 weeks & 2 days, just found out we are expecting a baby girl yesterday. I am excited about starting my shopping, but not going too crazy because I will have tons of stuff at the shower and people keep saying I'm jinxing my pregnancy. Damn, it's bad luck to buy a few onsies!?! Since when!!!