Period is back!

Hello anyone, I’m new to the app and and looking for support. I am 27 yrs old and have struggled greatly with having a regular period since getting off of birth control in 2017. I got the mirena iud placed in 2015. Since removing it I have struggled with having a regular period. I probably only get a period two or three times a year. I was prescribed progesterone to induce period but after taking them for a year I was wore out that I still couldn’t have one naturally so I stopped taking them last year. This week my period is back after not having one naturally for the past 2 years. It’s is very heavy! Not sure if this is helpful info, but I have also started working out and eating healthier for about 3 months now. Has anyone experienced this? If so, is it good news that my body is doing this, could it mean that I will start being regular? Is there something I can do to keep this up naturally?