Blood Donor

Mara

Back in 2014 until 2018 I was blood Donor When It was Regularly allowed. Back in 2014 I was barely smoking weed . My Question is am I allowed to donate blood If I detox from marijuana ? I want to help people since I'm universal Blood type.. I know it's a Very strange question but I started smoking marijuana mostly 3-5 days and more Since it came out to be legal.