Only weekdays dear, I like to take the earliest morning slots as appointments may overrun and have longer waiting times in the noon. First appointment they will take your vitals, height weight, measurements, blood tests and do a scan of can see baby. Sometimes too small to see at this point, but as long as can hear heartbeat it is good! If you're interested in the cost breakdown, I have an article here https://herwealthjournal.com/costs-of-giving-birth-in-singapore-how-much-i-spent-in-kkh/
No, only on weekdays. Your first appointment will be a consultation + ultrasound to see how far along you are and to estimate your EDD.