PCOS and Endometriosis....?

How would I know if I had either of these. I started my period when I was 13 and they have always been very irregular. I have between 3-6 periods per year. At the age of 21 I started taking BC pills in college to regulate my periods so when they did come it was bearable and so I would know when they were coming. I went off the pill 5 months ago at the age of 24. I had a period after my last pill and then one more 4 months later- that one lasted for 25 days. :/ I just finished that looooong period and I am meeting with a menstrual specialist next week. My mother had endometriosis, so I am wondering if I am at risk for that. Since being off BC in Sept I have been TTC, but never got a positive surge on an ovulation kit. Could I have endometriosis or PCOS? If so, how to they know and how do they test for it. Is it curable...? My mom's endometriosis was cured with a hysterectomy. What questions do I ask the doctor next week? Do you think there is any chance I could ever get pregnant?