Actually it doesn't say that on the bottle if it did I wouldn't have bothered asking.
You cant take cod liver oil during pregnancy or breastfeeding it specifically says that on the bottle
Id stick to safer stuff eat alot of fiber and drink lots of water and then try metimucil
Anything that can stimulate your bowels can also cause your uterus to contract. I probably wouldn't take it to be on the safe side.
Iv seen somewhere that u shudnt use it during pregnancy