Breastfeeding & Weed

Hi everyone!

So I just had my son 2 weeks ago. I have been breastfeeding. The last time I smoked was in August and I didn’t smoke my entire pregnancy. However, I just found out yesterday my mom was diagnosed with leukemia, my grandpa is back in the hospital for bladder cancer, and life has been so so stressful. So, my husband wanted me to smoke a blunt with him to help calm down a bit. I had about 5-6 hits. My question is, how long should I wait to breastfeed my son again to make sure there’s no chance of THC being in my milk?

Also, I don’t plan on smoking anymore, it was just a one time thing.