Aiyooo, cirit birit masa pregnant memang biasa la, especially around second trimester macam sekarang you're at 20 weeks, hormones dan perubahan sistem pencernaan jadi gila-gila, but kena pastikan you're staying hydrated sebab boleh cepat dehydrate, so do check with your doc just to be safe, ok? One of my mum friends had the same thing and doktor dia cakap normal je, tapi minum banyak air dan avoid oily food, terus ok lah. Baby fine-fine je as long as you're getting enough nutrients and tidak dehirat, so jangan worry sangat but definitely mention it during your next checkup, yeah?