Had a miscarriage exactly a month ago today

Colleen • mommy to two angels 👨‍👩‍👧‍👦

Today marks one month since I had a miscarriage. Today is also the day I started bleeding brown blood. Can I get pregnant again so soon after a miscarriage? Could my miscarriage have not completed? I took a pregnancy test a couple of days ago to check & it said not pregnant.