Jangan risau dulu mama, 19 minggu lagi awal lagi, baby masih banyak ruang untuk bergerak dan tukar posisi, so the head position dapat berubah berapa kali lagi before labour. A few of my mum friends kena cakap yang sama masa scan awal, tapi by third trimester semua okay je. That said, mesti confirm dengan doctor atau midwife kamu at your next appointment, dia boleh check lebih detail dan bagi peace of mind, especially kalau you're worried about the massage affecting baby (though gentle back massage biasanya okay, better to ask your healthcare provider to be safe).