Brown spotting....freaking out!!!

Sam • A stillbirth at 23 weeks. A chemical when I tested too soon. Mama to a perfect little 38 weeker and ready for number 2..

I have been spotting brown for the last 24 hours. It's light when I rest and heavier when I'm active. Nurse line said just to monitor it but I am a worrier. 21weeks and 3 days pregnant.

Anyone else have second trimester spotting?