Hi All, i am 9 weeks pregnant and holding dependant pass(foreigner)

I have visited private clinic for 3 checks ups cost me around $850. One visit to Kk for early pregnancy emergency cost $500 Just in a a month so much expense. I just read in the app about govt subsidiary and cheap checkups.. can u please guide me on this as i dont have much idea about it. Also, if i want to deliver in NHU how to register for the delivery there and the procedure? Many thanks in advance!