Help me please!!!!!

Well I had an amazing day for easter with my family. We haven't told anyone we are pregnant because we are waiting for my ultrasound next week.

But I went to the bathroom just a bit ago and had brown discharge on my panty liner (always wear one cause I had surgery down there and have excessive discharge) and then when I wiped there was about a half dollar sized amount. I've had no cramps nothing. Haven't had sex for a while.

Should I be worried and go to the er or would I be okay? I'm very nervous and worried