I think you need to be very careful ,, Didnt your husband tell you if anything happened again ( od or abuse meds) he would leave and take your child?
You deserve to keep your family intact but you have to do anything you can to keep it that way.
As mentioned........ what happened that you that you went searching for your meds?
Tell your husband you did find them and that maybe he could take them to work ,, or basically make damn sure you have no access.
Please stay safe