could it be the cause?

Emilija • Snapchat: emilija29 Insta: Coc4inee
I have took the pill for like 3 weeks and stopped to let my period finish. but ever since i started the pill i had massive headackes and was tired all the time, my all body was hurting and my breasts got very hard. its first time i took the pills in my life. i didint realise until i stopped the pill and all negatives finished. could it be the cause?