Help Im so confused?

Hey! So I had gotten 7 positive test. A week later I bleed for a day and a half. I went in and he diagnosed it as a miscarriage. I would of been about 5 weeks. About a month later I had light bleeding for a day. (Counted it as a period) And now I'm 4 days late ( per this app) and having light bright pink spotting. Has anyone had this? Were your periods weird after a miscarriage? TIA