Hey mama, I totally understand the worry kasi feeling mo maliit lang yung baby mo, pero honestly 1.7kg at 34 weeks ay nasa normal range pa, babies vary talaga in size and it doesn't always mean something's wrong, pero para sa peace of mind mo talaga dapat i-follow up with your OB at i-check ang growth charts nila and maybe mag-ultrasound ulet para sure. Maraming babies na medyo maliit sa simula but they catch up beautifully, pero iba-iba talaga at importante na may professional monitoring para sa baby mo.