PMS & Late period after 1 month of Birth Control

Mika • Gummybears make me happy 🐻 || 2021

So I took birth control last June but only lasted for a month since I immediately stopped in July. I had my period then afterwards. However, a month after (this August) I'm currently 1 week late. I took several pregnancy tests and it all came negative, I even took a blood test which also resulted to a negative. But the thing is, I'm currently experiencing PMS, I have sore breast, mood swings, and pelvic pain.

Has anyone experienced the same thing?