R.C.
The baby is trying to tell you something by crying. At two months, a baby is too small to let them cry on their own for any reason (unless, of course, you have lost all patience and do not trust yourself at that particular moment). The baby can be very colic, experiencing very painful gas (have you tried drops?), something could be wrong with baby like GERD, etc. Remember, their world has recently changed, and they need reassurance that mommy and daddy will be there no matter what. I highly recommend Dr. Sears' "The Baby Book." Good luck.