First, you shold wait until you're off the methadone completely. That is a powerful drug that doesn't need to be in your baby's system. Once you're off and everything is out of your system you can worry about getting pregnant. For now, make sure you get yourself as healthy as possible, which includes giving yourself enough time to make sure you don't have any more drug problems and that you don't relapse. Then, when you're ready you should start taking prenatal vitamins and you should eat as healthy a diet as possible (no fast food, no junk food, limit sweets, etc.). Don't drink and don't smoke. Make sure you're at a healthy weight. You should also make sure you have a stable job with an income high enough that you can properly care for your baby. Kids aren't ever cheap but there are a lot of things you'll need to prepare for a baby and the costs add up. A car seat, crib, crib mattress, clothes, diapers, formula if you need it, bottles, plus loads of other things means you should start saving some money now. Babies are also an incredible amount of work. There is a lot of stress, sleep deprivation and sacrifice involved in having a baby.I understand the desire to have kids, I'm pregnant with my third. I'm not trying to talk you out of having kids, but you should know that there is a lot more to consider than just whether or not you want one. You have to make sure it's the right decision for you at the right time.