Help period

Gulum
Hi ladies I'm new to this and loving all these talk so good to hear other girls life !!!!
So anyways my period so wired before I got a bf my period always on time every month now that been with him 2 years I get my period after every 3 months !!! I got my period in November and I just got my period today !!?!?! Any ideas why please ladies need help 😊