Often a result such as this shows you have a high risk of the cells developing into cancer in the future and they do treatment now to prevent this happening. You obviously will need to see your Gyno for further advise/management but I would say they would be looking at doing a colcoscopy, possible biopsy and depending on the results you may need a LEETZ which is where they remove a section of the bad cells on top and leave good cells underneath. Its surprisingly very common and then you will need more regular pap tests from now. Try not to stress to much. Often the hormones of pregnancy feed any even slightly not so normal cells and it is quite common to have a flair up after birth which would have gone unnoticed if you didn't have a pap at 6weeks.