I'm 7wks pregnant and i have twinges in my heart?

Calm: Pregnant women don't have heart attacks. The twinges are not heart pain but you may be feeling skips which are common and increase in pregnancy. They are almost always benign. You should talk this over with your doctor. A blood sample and possibly a recording of your rhythm would help. I'm sure you don't smoke. Avoid caffeine and alcohol, get plenty of sleep. This too will pass! good luck.