Please read, Am i a bad mother?

Ok, I have a 15 soon to be a 16 yr.old son. And I feel like he is the worst son ever. Dont get me wrong, I love my son sooo much, but he treats me like crap and everyone else in the house. Im preg. and at a high risk. I am due any day now, My son has put me through soo much, he cusses at me he refuses to go to school, even after we went to court for truancy. We fight and yell when he has to get up for school which he ends up not going. he resently got arrested for theft, and again a few days after for trping. He doesnt even sleep at home anymore, My fear is that he may be on drugs like meth My husband works soo much and is gone half the month sometimes longer. My son doesnt act up when his step father is home but my son is hardly at home when husband is. I am to meet with a probation officer on the 30th for his theft and trping charges. Am i a bad mother if Iwant to put him in boot camp and I dont want him at home anymore. Things are so much peaceful when hes not here. HELP