Yes, it is possible
It is possible to relapse.
It is also possible that the hormonal changes that accompany pregnancy
have caused an alteration in your mood
. There are conditions of anxiety
& depression that affect women after they give birth, called postpartum depression
. Your doctor can determine the appriopriate course of action & whether medications are appropriate. Wishing you'all the best.
Answer assisted by Allison Greco, Medical Student