I had sex oct 4th, had a cycle the 1st of nov, i'm currently having another cycle. i'm irregular & it doesn't come for months. possible miscarriage?

TheUpsAndDownsAndUps: First see if you're pregnant with a urine pregnancy test. If you are, then you should see a gynecologist post haste to make sure something else isn't also going wrong. If not, then decide just how frustrating it is about these irregular periods, or if you have other symptoms like cramps or bloating or whatever. If so, then see a gynecologist post haste. Don't ignore this for more than 6 months max