Medicine while pregnant!

I was 5 days late today and took a test.. big bright positive shining there for me 😍

The problem is I’m so scared that I’ve already hurt the baby. I’ve had a head cold for the last week and been taking mucinex every 4 hours for the last week. Including this morning before I tested.

I looked online and it said to avoid any medicine if possible in the first 12 weeks!

I don’t even have a OB yet to call.

What should I do?? What can I take?

I’m going to find a doctor today but I dontknow what to do until then