I m 25 weeks pregnant , and all the pregnancy books I ve read say that heart palpatations are not good during pregnancy, and to call your doctor if you experience them. Ive been having increasingly uncomfortable palpatations since friday night, and cannot contact my doctor. They only last a few beats, but are now occuring every few hours. do i need to go to the hospital? i cant really afford it unless it is necessary. (the palpatations seem to occur with an unexpected sense of anxiety and lately a lightheadedness ) i forgot to mention that i was born with a heart murmur that disappeared on its own but reappeared when i was 15 (when i passed out horseback riding!!) , then went into hiding again. Also, my last appointment was friday afternoon, just before the palpatations started to occur, and everything was fine then; even my blood pressure, which was excellent.