Sayang, this is actually a medical thing yang kena confirm with doctor, so please go see your GP or klinik as soon as you can, they can do a proper test to be sure! Banyak sebab boleh jadi, timing of the test, hormone levels, or macam-macam lagi, tapi doctor je yang boleh advise properly. A few of my mum friends pernah confuse jugak, so don't worry, tapi check with clinic/hospital je untuk peace of mind. Jangan stress dulu, okay?