help me please

so i’m on birth the patch, and i’ve been on it for 2 months. and me and my boyfriend had unprotected sex like 1 or 2 weeks ago, and he didn’t nut in me, but i’m experiencing lower abdomen cramps, and i’ve been having it everyday . but my period is due in 6 days. can you tell me if this is a sign that i might be pregnant,

or period is coming? or birth control ?🙁 i’m so worried ..