Due date

Hi everyone ! I oved very late this month ( for me ) on CD 21 . ( normally have a 28 day cycle ) 9 dpo I had a positive hpt. According to glow I am 5 weeks pregnant if I use my LMP ( because I only usually had 28 day cycles ) but if I go by ov I’m only 4 weeks today . I guess what I am asking is which one do I go by! Have my doctors app on Monday so I know she will help me figure this out but I am just more curious for myself ! Thanks