My doctor said because I’ve gained so much muscle in sports and the gym, that it delayed my period. On the quiz it said my period will come in a few months. Will come even later than that because of the muscle I’m building

Okay so, intense exercise can totally affect when your period shows up and how regular it is. It's not usually the muscle itself, but more about how much energy your body is using and how much you're eating.

Like, if your body is working super hard and you're not getting enough fuel, it can decide to put off things like periods because it's focusing all its energy on keeping you going. This doesn't mean you should stop being active or anything! It just means your body is doing a lot and needs a lot of support. Sometimes if you're exercising a ton and not eating enough, your body might not have enough body fat, and that can mess with hormones too. Doctors call this 'athletic amenorrhea' sometimes when it delays periods.

Your doctor knows your body best, so if they think your period is delayed because of your sports and gym routine, they are probably right. The quiz on the site gives a general idea, but your doctor's advice is way more personal to you. Just make sure you're eating enough yummy and healthy foods to fuel all that amazing muscle you're building, and listen to your body. If you're ever worried, definitely talk to your doctor or a trusted grown-up again.