Irregular periods

I’ve been having irregular periods for a couple months and it’s been concerning. Sometimes my period will come two days early and be really light. I’ll barely bleed for the usual amount of time and then I guess I’m done with my period. I’m just worried because I’ve had issues with STDs and infections before. I don’t know how that affected my fertility and I would like to have more kids in the future.

My regular period was supposed to start this Saturday and last for three maybe four days. Today it started but it’s just very light and everytime I wipe it gets lighter. When before my periods would be light but progressively get heavier. I also don’t eat much or drink and I’ve been stressed lately since I’m in a newish relationship and trying to figure out his habits so thats got me stressed 😅.

I’m not planning on having another baby anytime soon since I don’t even know if I can get into a relationship this guy is sorta confusing me and most guys are confusing so it seems like it takes a miracle to find the right guy. Does anyone have any idea of why my periods are becoming lighter and shorter?