Painful back cramps and anger

I’m due for my period anyway now and although I’m trying for a baby I’m starting to give up my I feel cramps in my lower back which I’ve never had before in addition to my regular cramps I wish my period would just hurry and start so I can get it over with , usually I’d stay hopeful until my period starts but this time I’m not ! I’m not thinking of how I’d tell people , I’m not thinking of a cute way to tell my bf I’m not looking up when I’d be due nothing