Anak, please go see your doctor or OB as soon as possible, sharp pain sa puso or sa baba, lalo na kung sobrang sakit at hindi ka makalikad, dapat tingnan ng doctor mo talaga. Hindi ko dapat sabihin kung normal ito or hindi, kasi yan ang trabaho ng medical team mo. Tawag mo na lang sa OB mo ngayon, or if you're in real pain, go to emergency care na.
Sending you a hug, first pregnancy is scary, alam ko! Just get checked, okay? Better safe than sorry talaga.