Pregnancy symptoms while breastfeeding?

Katie
Any of you ladies have any experience or know what to expect when it comes to pregnancy symptoms while still breastfeeding?  I know thy normal symptoms will probably occur, but let's be honest, breast enlargement and sensitivity, cravings and weight gain, etc (aka most of the common symptoms) are things we all deal with as breastfeeding moms on a regular basis.  Any ideas what to look out for or expect?