I have heard that there are no known side-effects but women are known to have low-birth weight babies if they get pregnant on it..im not an expert its just what ive heard before but good luck..
The effects are Ectopic pregnancy this is where the embryo starts to develop in the fallopion Tube instead of the Womb. I f this is detected early the pregnancy will be terminated and in many cases the fallopion tube removed which can make conception more difficult later on. If however an ectopic pregnancy is not detected early it can be fatal for the mother and the faetus other defects may be Downs S yndrome, Dyslexia and other mental, learning & Physical Disabilities as awell as low birth weight and premature birth along with development problems of the lungs!