Stomach pains

[Casey]

I have recently been getting really bad stomach pains (feel a bit like period pains) and it hurts sometimes more than others. It usually hurts the most either during or after sex, and it is really putting me off making love with my boyfriend. It even hurts when I press my stomach gently. I am worried in case it is anything serious, does anyone have any suggestions as to what it might be? And will a smear test detect the problem (as blood tests make me cringe!)