pregnant again!??

Emilee • Rip 3-25-17👼🏻 💙10-19-18 Liam💙
I think I'm 4 weeks have not taken a test to confirm yet. I had 7-8 day pink brown discharge.  This morning and yesterday morning I had some diarrhea tmi I know. Do you think I could be pregnant agian. I just had a mc December 23 and have not had my period yet and I thought that the light discharge might of been it but it looked like implantation. I've I have recently gotten a cold so that was another red flag as well