Nervous first time mommy to be

Val • Mother to Damian Xavier born in July2016 💚
Yesterday around 1pm i noticed that i spotted brown discharge.. Im 4 weeks pregnant so I've been thinking the worst. Today in the morning i counted 6 brown discharge drops and i used the restrooom at 3:20pm today and it was gone. Should i not worry so much about it? Should i go to the ER? I know im only 4 weeks pregnant but im so attached to this baby. I love it soo much. Please comment anything below. I really appreciate it.