It's very possible, cats seem to have a sixth sense about all kinds of things. When I was pregnant with my son we had a cat named Derek. One afternoon I was laying on the sofa and Derek came up and settled on my stomach. Well, the baby kicked and poor Derek went flying and wasn't seen for the rest of the day. Once the baby was born and home from the hospital, Derek could almost always be found under the baby's crib. Your furkids know something is up and are watching out for you. Can't wait to hear when your beautiful baby is born!