Just a little curious

Britani
Ok here it goes.... I've been with my boyfriend 3 yrs and we have had unprotected sex all but maybe 5 times our whole relationship. Well he came home from out of town two weeks ago after being gone a month and we've been busy if you know what I mean. Well I am now two days late for my period and cramping but not in the usual manner. Is there a possibility that I may be pregnant? I wouldn't mind being a mother but he is in no way ready for a second child or so he says.