Help!! Pregnancy positive with spotting

Is anyone able to help, I took two pregnancy tests when my period would have been due both showed negative. I assumed the spotting I had that lasted 11 days was late and was a weird out of wake period, my periods are not that regular so thought nothing of it. Have been so tired all week and feeling off today so thought I'll test again. It came up positive?!?!? I am so apprehensive as this has happened before with a miscarrage.