Spotting in early pregnancy

So I'm 4 weeks 2 days and one of the signs I got was light implantation spotting for 3 days a week ago. Today I pooped and there was blood on tissue. Gradually its been turning brown and lessening.. Which I feel is a good sign right? It's not consistent or increasing and breasts pain increased. I'm going to the gynecologist tomorrow to get checked just in case. I'm so scared.