First, lets adress the fact that many girls are getting pregnat. The link below shows different birth control methods http://www.epigee.org/types-birth-control.html This could help lower pregnancies if girls are aware that they can prevent it.
Many believe that If a person really needs the assistance there should be harsher regulations which they would be inclined to follow. For instance drug testing, random house follow ups, strict regulations, every applicant must see some sort of advisor before receiving assistance and renewing their application every six months in order to follow up on their income status. http://www.wbko.com/home/headlines/House_Bill_Drug_Testing_to_Receive_Food_Stamps_113823879.html