How long would I go to jail if I tell them the truth?

I got in a fight with my husband and he never hit me. I wrote in the statement that he did and I wrote more things that weren't true. I said he was a drug dealer and he isn't. I just wanted him home so the cops can look for him and bring him but now he is charged with domestic violence stage 4 and interference of the police saying he told me to lie about the statement. I'm 1 month pregnant and we have a 4 year old. I don't want him to go to jail.