Gestational sac

Hello po, Ask ko lng po opinion niyo. Miscarriage History: Last Day of Menstration: August 11,2023(10W1D) Pregnancy Test Date: October 20,2023(Positive) Ultrasound Date: Octobe 21,2023 Mean Sac Diameter: 2.16cm Heart Motion: 128BPM Age of Gestation Based in Todays Scan: 6Weeks,2Day(Left Ovary) Question 1: Tama po ba understanding ko 4weeks yung difference from the date ng Last Day of Menstration ko vs. Sa Age ni Baby based dun last scan sa Ultrasound New Pregnancy Journey: Last Day of Menstration: March 8,2024(6weeks+) Pregnancy Test Date: April 13,2024(Positive) Ultrasound Date: April 20,2024 Result: -No gestational Sac nor fetal Pole seen -Both Ovaries In Size Question 2: Related po sa first question ko mag antay po ba ako ng 4weeks pa para makita tlaga si baby.?