How far along am i ???

I’ve always had VERY irregular periods. Theres times where i would get my period TWICE a year.

Anyway i just recently fiund out I AM PREGNANT!! So happy! Still dont know how lol.

I have an appointment with an OB until next week Tuesday! But im driving myself crazy because i wanna know when i conceived/ how far along i am.

My last period was Nov 10 .

Any ideas????