A question to stoner mommies

Before I got pregnant and had my baby

My boyfriend and I would smoke weed together once in a while to relax and chill, while I was pregnant he kept smoking (not around me of course) and I was totally fine with it. Now that my baby has been born I am a bit on the fence about the whole smoking thing. I got high once after I had my baby and I felt so guilty about it, baby was asleep for the night so I didn’t have much to worry about but I just felt like such a bad mom. My boyfriend has been wanting to smoke with me but I just can’t help but feel bad about it

Did anybody else feel like this? Or am I just overreacting?