Un ung bigalaang pag bilis ng tibok po ng puso nio na oarang nan lalamig o nandidilim oaningin nio.. Heart palpitations while pregnant This extra blood results in a heart rate that's about 25 percent faster than usual. A faster heart rate can result in occasional heart palpitations. These feel like your heart is fluttering or beating extremely fast. Heart palpitations can be normal and nonharmful during pregnancy.