Alah congrats on 17 weeks! So basically you're in your 4th month (bulan ke-4) lepas, pregnancy weeks memang confusing sikit haha, tapi the way they count it, 17 minggu is around 4 months plus seminggu, so your baby is roughly 17 weeks old. A few of us moms were blur jugak dulu about the conversion, so don't worry, just tengok the trimester je (you're in your 2nd trimester now yang paling best!) and your baby dah boleh dengar suara you at this stage, so sweet!