Positive test but no idea how far along

Hi ladies,

Looking for some advice/thoughts. I had my first LO in Feb 2020 and exclusively BF until last month and throughout that time never got a period (which I know is normal). Today I took a pregnancy test and it was positive. I’m in shock for many reasons, but a big one is I have no idea how far along I am since I haven’t had a period since giving birth. I can’t call my OB until Monday so I’m just over here freaking out about all the possibilities...I’ve taken the COVID vaccine, I’ve been drinking here and there, I’ve been working out really hard and dieting...Any thoughts or advice would be so appreciated!