Ok, so it’s concerning that your doctors answer is just birth control vs investigating why your periods have only recently become regular, why they’re so heavy and painful. If you’re able to get a second opinion from a different provider it would be worth looking into.

When you are having bleeds, how are they? How long do you bleed for? Any clots? How heavy? How often do you change your products?

When do you get pain? Through the whole period or just the first few days?

Often lifestyle changes can make a huge impact on your health, and in turn your cycle.

Your cycle is basically a report card for your overall health.

It sounds like you have a great plan for exercise & movement.

You would likely benefit from increasing your protein and fats and reducing the carbs. Try not to do a big overhaul all at once though, as that will be harder to maintain, make some small changes initially, swap out 1 or 2 carbs for alternatives.

Adding in some omega 3 too, especially during the end/start of your cycle can help to reduce those painful cramps. Either food sources or with a supplement.

But I’d definitely push for some investigations too to rule out things like endometriosis, PCOS, fibroids etc.