Feeling horrible!

Ok so we been trying to have a baby for months and months, taking care of my self but is always the same (negative), so a week ago (January 2) I get really drunk, in part of the disappoinment of the past months, my last period was Dec. 18 but we keep trying until Dec 27 and today my test looks like positive and now am sad 😞 I dont want to harm my baby in case that It is positive, it was only a week after the conception when I get drunk and now I am afraid 😔