7W 5D Fetal Heart Rate at 103bpm

Just had my TVS earlier according kay doc, may significant growth si Baby from previous TVS pero 103bpm yung fetal heart rate nya. Dabi ni doc, balik kami after 1week pero takot talaga ako. Should I be worried or what can I do? Meron din po bang nakaranas nito at naging okey naman si Baby?