Something to keep in mind with the feedback you will be sure to get from those with more than one child here...
EVERY BODY is different, as is every pregnancy for each body and each time.
What one person experiences, is still going to be different for you. As we do not have your health history (and I feel your medical background can play a part in how your pregnancy will be affected - whether you have an easy one or not), the best way to get this answered is to talk with your OBGyn as she has your background in the previous deliveries, as well as your annual physicals.
Your doctor will be able to give you sound advice on what to expect if you conceive after a c-section as well as how long you should wait to allow your body to shift back after the internal trauma of carrying the pregnancy.