Aiyah, most of us tunggu sampai 36-37 weeks baru amik, tak perlu rush sangat at 38 weeks lah, by then you sudah quite uncomfortable to work anyway! Your gynae will guide you based on your condition, tapi generally better to start earlier sikit so you can rest properly before labour. A few of my mum friends yang amik cuti awal said they regretted tak amik earlier because they were so tired last trimester, jadi timing tu really up to you and your doctor la.