Please don't judge but I have a question.

I am not ttc but we are only using withdrawal. We would be okay with another kid we have one but you know with pullout it can happen. Anyways last night I did LSD for the first time just two hits. I today realized my period is due in 3 days. If I am pregnant this would not have harmed my baby right? This early? I Google but couldn't find any one answer for it.. EDIT!! no she was with a close family member I would not do that with her around.