Aww mama, sakit perut ada banyak sebab, could be gastric, period cramps, or something else, so better check with your doctor before Isnin okay? Jangan risau, tapi jangan diamkan jugak. If it's really painful or you feel anything else yang tak biasa, go see your gynae or doc hari ni, no need to wait. Gastric memang boleh cause discomfort juga, but best to rule out other things. You're a first-time mum, so it's smart you're being careful!