No gestational sac seen 4 weeks 5 days

Meron po ba dito na same experience? Because of my chemical pregnancy last year, I had an early transvaginal ultrasound done last thursday, I was 4w5d based from my app tracker. I had a strong positive PT the day of my missed period. Pinapabalik po ako ng OB ko after 2 weeks coz probably sobrang aga pa raw kaya walang nakita. Wala naman akong spotting, or any alarming vaginal discharges, and pelvic or uterus pain. I am now 5w2d pregnant. Praying that I’ll see my baby on the next scan.