Should I see a doctor?

Sarah
Okay... My last period was 12 DAYS! I have never in my life had that. I was late by almost two week though. I was off my period for 5 days and now I'm currently on period day 10. I have no idea what's going on. My husband and I have been TTC for almost 6 months. I'm becoming extremely discouraged and feel like something is wrong with me. Anyone think I should see a doctor or just wait it out until the year mark. Also, if anyone else has an opinion on what's going on it would be greatly appreciated.