Hi, I Have Been Taking Sprintec Since Feb. I Stopped

Hi,
I have been taking sprintec since feb. I stopped it around the 26th of june, which was 3 days away from the white pills. Im wanting to try to conceive in Aug but I still haven't got my period yet. I have had some stomach pain. I also didn't get a period in June. Is this normal? How long does it normally take for your body to regulate? I really wanna conceive next month any advice? Thank you!