Is it the pill????

France

I had my period on april 25 and started using nora B and I start bleeding so I stop and only use condom as contraceptive but today is May 31st and still nothing (no period) but feeling pain in my low stomach I can feel the pain when I press on it just a little . Don t wanna get prego now. Do anyone have some idea ? Don t want to conceive I hav a five month old baby ?