Marijuana and fertility

Hi! Im 19 and i occassionally use marijauna edibles to relax or when i get severe cramps. I want to become pregnant in about 5 years. Will my occasional use now affect my fertility or cause potential problems for my future child? I am a healthy girl. I eat well do intense pilates 2-3 times a week. I also have a regular cycle of 28 days. 
I also want to say that i wouldnt use any drugs during my preganancy or 1-2 years before.