Irregular Period!!!

So this year alone has kind of been a whirlwind of period issues!! I got my period in Jan and didn’t get it in Feb. It kind got normal and then I didn’t get it in April and May I believe. Well I’m on my 12th day now and it’s just frustrating because I eat really good and like to think I take care of my body! Ever since I stopped taking birth control which was last January I’ve struggled with this. I downloaded this app to keep track for doctors but mainly myself! Any tips on getting a regular ( and short ) period would be greatly appreciated!!!