My girlfriend has told me she is two weeks late on her period. Following only one occasion where we had unprotected sex, this has concerned us both as to whether she maybe pregnant or not. I understand a number of reasons why a woman maybe late with her period, however, can you advice as to what our next steps should be & when they should be taken? We would like to establish whether she maybe pregnant or not? We are in a serious relationship, however, we both, at present, do not want children. I thank you for your time.