KKH doesnt do scanning after 4th month?

Hi.. i am under subsidised at kkh and they will do ultrasound scan, perhaps not at every appt. For me, the second appt at 15 weeks didnt include ultrasound, but only using the doppler to listen to baby's heart rate. There will be the ultrasondscan for my next appt (19 weeks) to know baby's gender after 4th month as it will be more accurate only by then.