CA 125

Hey guys my husband and I have been trying to get pregnant for close to 9 months now with no luck and I recently had an appointment with a fertility doctor and he did an ultrasound and said everything looked ok and also did blood work to check for endometriosis. My CA 125 was 14. Just wondering if anybody has had this test done and if so what is the normal range? The nurse just told me it was borderline normal so I’m not sure what to think about that and my follow up appointment isn’t for another week. Thanks y’all!!