Is my girlfriend pregnant?

so my girlfriend started taking yaz the day after her period ended. She hasn't missed a day and the brochures say active after a week. We had a couple times directly after her period using a condom that didn't break . going by the rhtym method dont women ovulate 12 to 16 days before their period meaning that this first week we had she wasn't very fertile. And even though she didn't start yaz the sunday after her period i think it was a tuesday is it still active in a week? she thinks that she is feeling cramps in her lower stomach area. Should i be worried? I think it is all fine.