Recently off birth control

I stopped taking my birth control about a month ago. We are trying to get pregnant but not monitoring fertility or anything too closely, however I am 5 days late on my period. I have had a lot if cramping the whole time I should have been on my period but no other symptoms that makes me think I may be pregnant. Could I be pregnant this soon after stopping my birth control or is it late due to my hormones trying to get back in balance?