Bleeding Scare

Hey ladies. So I’m on my second pregnancy and throughout my first pregnancy I never bled till I lost my mucus plug. I’m 6 weeks pregnant and I had pink discharge for about 3 days which I know is normal for early pregnancy. But now it’s turning bright red. I went to the ER but when they checked the bleeding had stopped and I was okay. Baby still has a heartbeat. The bleeding stopped and today I had a follow up. Did an abdominal ultrasound and everything is okay. I went to the bathroom and I’m bleeding again but they said if I have pain down my sides and my breast isn’t tender then to go back to the ER. I’m still scared though and I don’t feel any pain and my breast are still tender. Has this happened to anyone else? If so what did you do and how did you handle the situation?