Wa'alaikumassalam sis! Ahhh I feel your frustration, the whole process memang confusing for first timers, kan? A few of us first-time mums went through the same thing, wondering when exactly we're supposed to book and register, especially since different clinics have different procedures! The good news is bulan 4 appointment is actually perfect timing, you'll get all the details sorted and your buku pink will be properly managed by then, don't worry, baby dah healthy with a heartbeat, that's what matters most. Just think of it as things falling into place in their own time, hehe.