Aw, I hear you, palpitations during pregnancy are actually pretty common, especially around this stage kasi tumaas na ang blood volume mo, pero better to check with your OB just to be safe para matuwa ka lang talaga. A few of us mums experienced it din, and our doctors reassured us it's usually normal, pero they did some tests lang to make sure everything's good with baby and your heart. Wag mag-alala too much, pero don't wait, schedule a check-up agad para mapakita mo sa doctor, lalo na if nauubusan ka ng hininga or feel mo dramatic ang changes. Take care of yourself, mama!