Day 3... I’m getting anxious

It’s day 3 of my (what’s supposed to be) period. I’ve been cramping here and there, my boobs have been sore and heavy and my apetite has spiked but I’m not sure if it’s the weed lol I’ve been smoking because I’m stressed I might be pregnant but I’m trying to wait to rest until I’m a week late. I was cramping a week before my period was supposed to be here and just thought it might be because of ovulation or just my body preparing for my period and glow is always accurate when it comes to my period.. any help ?