Pregnant!

M

So I’m pregnant as I found out last night my period what missed by 4 days so I took a pregnancy test. I am trying to see how far along I am as it’s my first, so my last period was the 28/11/2018 my menstrual cycle lasted 28 days and it came 2 days early and I just don’t know how many weeks or months I am can someone help me please?!