Jenelle Evans, 22, had an abortion this year. Originally featured on MTV four years ago as a pregnant teenager, Evans, who loves to party, had a son, gave the son to her mother to raise, got into heroin, got married and went to jail; her husband ended up in jail as well on drug charges. They got divorced. He didn't know that Evans was pregnant. She got an abortion. He found out about it on the commercials for "Teen Mom 2." Now she's pregnant again. With a third guy. Who may or may not be seeing another woman on the...