 [ Symptoms ] what might be the possible cause of pain in the lower left side of back and stomach [ Disease ] yes many woman spot when they are first pregnant best action to take is get tested to see if you are pregnant perhaps going to a doctor to have this done would be best as they can also advise you on the bleeding or spotting while you are there if you are not very far along i would suggest you ask for a blood test they are very accurate and can detect pregnancy very early on