Theft By Deception Charge?

I am very confused with all this. A sheriff served me with 7 papers for bad checks a couple days ago. I had no clue what they were for bc I haven' t had a bank acct in years. I got to looking, and it was from 2004! Yes, they were my checks, I'm not denying that. There were 7 of them, all very small ($30) but 2 were around $100. I couldn't believe it bc this was the first time I had heard of this. The papers showed that they had only tried to contact me at the address on the checks one time, and I had moved probably one month after the checks were written. I have always given a change of address everytime I have moved so I don't understand why I never recieved anything. They were all to Wal- Mart, and I don't know if I had misbalanced my check book or what. They were spread out over 2 weeks. Now I have to go to court over this and I am freaking out. What can I do? I have no issues with paying these bc they are my debt and I do owe it obviously. I mean, how am I supposed to get a job with 7 counts of theft by deception on my record? I never meant to decieve anyone! My big problem is that I have a charge from 2005 for stealing a bottle of shampoo from wal mart ( I did things in my past when I was younger that I am not proud of and have paid my debt to society) Then when my sister, who was a minor at the time decided to steal a bunch of crap from a store, I got charged with complicity bc I was there with her! Even after the cops tol dthe store that they could not charge me bc they had no evidence that i did anything bc i wasn't even with her in the store! she got nothing and i got 10 days bc the prosecutor said I was guilty bc of the charge from 2005. How about that? he looked at me and said bc of a previous charge, youre guilty! exact words! so now i'm like great. theyre going to lock me up again. i have been trying to put distance between myself and my past, and its been 2 years. i have a home and a family now. i'm so scared that they will throw me in jail and i'm 3 mnths pregnant. like i said, i am more than willing to resolve this but i'm afriad theyll lock me up bc i have a record.