Hi mama! I know it's scary to wonder about these things, pero please ask your OB about this during your next checkup, or call them now if you're worried, okay? They can check baby's heart rate properly with ultrasound at your appointment. A few of us moms always panic about every number we hear, pero ang doctor lang talaga ang makakapagsabi kung normal it is sa exact gestation mo. You're doing great by being concerned!