well people told me it could be felt like gas bubbles but truthfully when do you recall ever feeling gas bubbles before?? i havent so then i knew it was my baby. I also felt it around the end of the third month or beginning of fourth believe me you will know it, Whatever you are feeling could be your baby kicking. Once they get bigger and kick you WAY harder then you wish it just felt like gas bubbles again! : ) but wait till you can see your baby kick, now that is something worth catching on tape!!