One thing I found interesting is that even small changes in your cycle—like having longer or skipped periods—can sometimes be the first sign, even before other symptoms show up. Also, if you notice other things like unexpected weight gain or more acne and hair growth, those can all be connected to hormone imbalances that affect fertility. If anything feels “off” for a couple of cycles, it’s totally worth checking in with a doctor—sometimes they can help way earlier than you might think!