Freaking out! 😳😳😮😫 im 12 weeks tomorrow

Angelica • 26 Years Old! Married to My Bestfriend💍, 4 Year Old Daughter 👧🏽, Miscarried In May 2017! 🌈 Rainbow Baby Born June 8th 👶🏻❤️

2 days ago i started spotting bright red; i went yesterday to my OB Appt and they did an ultrasound (due toy spotting) saw baby moving and heard heartbeat everything good! (Thank god) my OB also checked my cervix said it was closed and some old blood, she cleaned it etc etc now today im having brown discharge, im freaking out :( (now i also been having lower back pain but was told its sciatica cause it goes down my buttocks and legs)