My boyfriend came in me can i be pregnant ?

my boyfriend and I have been haveing unprotected sex everyday for the past 2 months.. he's came in me a couple of times already and now I'm haveing pretty bad cramps in my stomach (that I know is not my period since I had it a 2 weeks ago).. and I'm also having really bad mood swings and lots of cravings exspecialy for salty food so does this mean I can be pregnant?