I agree it sounds like a hernia! After I had my second child I was diagnosed with Abdominal Separation, which is a lot like a hernia but not painful. Fortunately they can correct a hernia but with AS you are stuck with it unless you have a tummy tuck. So here I am trying to loose all this weight and I stuck with a huge egg bulging out of my belly! Gross!!!!
Just make sure you mention this to your OB so they can monitor it so it does not get a kink in it!
sounds to me like a hernia..where a hole develops in your abdominal wall.
dont push on it too much and call your doctor. they don't cause any harm during pregnancy but sometimes after pregnancy surgery is needed to fix them.