why is it???

why is it that i always get sick when rob has to work? I started yesterday crapping my brains out, and an up set tummy and this morning I have horriable stomach pains, and of course my husband is working all weekend on the coast! How is it I always seem to be sick when he is not able to be home? oh and why is it that Mom's still have to work when we are sick, and dad's get to call in sick and go to bed?? that just sucks! well I'm hoping that its just a 48 hr deal and I'll feel better by tomarrow because I am supposed to go to a meeting at church!