im worried im pregnant, i changed from yasmin to femodette and didnt realise that i had to use extra protection for the first week. now i finished my pill on sataurday and its now thursday and still no signs. im starving all the time, constantly need to pee, odd feelings in my womb (maybe its just my period) and an odd taste in my mouth not metal just odd, kind of sickness taste alot. quite alot of discharge but no period??