Hai sayang! Semput dan jantung laju memang boleh jadi normal masa hamil sebab body kita kena pump more blood and oxygen untuk baby, tapi kau perlu check dengan doctor to be sure lah, especially kalau it's sudden or terasa sangat uncomfortable, better safe than sorry kan. A few of my mum friends experience the same thing tapi diorang kata lepas explain dengan doctor jadi lagi tenang, some even kena check iron level atau blood pressure je pun. Jangan tunggu, call your clinic or go for antenatal check, okay?