УЗИ показало разные сроки беременности: 6w3d и 11w4d, когда овуляция? Срок по месячным другой!

Had an ultrasound done sep 5th measured me at 6w 3d!! Just had another one October 11th last night lol measured at 11w4d. My due date is the same April 28-29. My last period was July 15th based off lmp my due date should be April 21-22. Did I ovulate late? Seems to me lol but need other heads 👀 #myfirstpost