i am 19 year old female for the past 3 days i have been experiencing sharp pains in my ribs i have done no physical exercise to have caused it i am a healthy weight and i have been quit from smoking for 13 days now i am also 17 weeks pregnant...now the pains i get are completly random an they can hit at any time they are not made worse by breathing in or exercise they can come at the side ov my rib cage the the ribs at the back an in my shoulders mostly all on my left hand side but some pains on my right i all so get my ribs at the front on the bottom can hurt and rite in the middle ov my chest also i seem to get like a mild stich in my left hand side at the top ov my stomach i am starting to get scared it did seem like it all started with a pain in my left shoulder pain an side about 2 weeks ago what could be wrong wit me my blood pressure an blood tests were normal as was ecg please help me!!!!!!!!!!!