can i actually feel my baby's heartbeat at 12 weeks when i sit still? or isit my own heartbeat?

Even if you’re in 3rd trimester it’s highly unlikely you can feel baby’s heartbeat because usually it coincides with our own so difficult to tell whether it’s your pulse on your tummy or baby’s heartbeat.

You can’t really feel baby’s heartbeat tho. If you feel any heartbeat near the lower abdomen, it’s most probably the pulse in your abdominal aorta.

It is your own heartbeat.