In my opinion life begins once an organium can begin to preform all of its internal opertation independantly, that is if it were to be left alone and no one aided it life by getting food or would starve to death. that is why i consider a baby life and a fetus a fetus. if you were to leave a fetus alone it would not be able to function properly with out the aid of a mothers womb. to grow a fetus needs already digested food, to function a fetus needs a blood supply that is not its own. that is why i dont consider contraception the begining of life. the birth is, thats why we celebrate birthdays not contraception days, cus your birthday it is the anniversary of your life begining. your only commiting murder if you forcefully take a life of something that would have been able to survive by itself had you not acted upon it. thats jsut the way i see it.