Pregnant straight after a miscarriage..

Looking for some advice pls.

Long story so bare with me.

Last period 1st august, missed period did a test ad positive to then bleed a week later and a day after catching covid. Not had a period since.

This week have felt so tired and not great, so partner said to do another covid test, negative but also did a pregnancy test and boom positive…. 1-2 weeks. So it’s not the last one.

Confused about dates.

Scared because it’s happened so quickly.

My mind is blown!

Any one been in similar situation?