fist ever miscarriage😢warning TMI possible

Well tested early and was all positives but kept testing to try and get that darker line and I took a test two days ago and no line then again yesterday no line then in the afternoon I started to bleed and woke up today to a lot of blood and craps and pain from my wstamations I was only 4 weeks 2 days and bleeding came on my normal period day but was a lot of bleeding and negative test I'm just wondering do I call my doctor and tell them do I need that shot like I had after I had my two ofther kids if you can help me that would be great thank you lady's