Abnormal periods and strong pregnancy symptoms for 2 months now & symptoms getting stronger but all neg tests w/ history of cysts still possibly preg?

Probably not preg: Probably not pregnant. You could get a blood test which would be more accurate If still no menses after three months, an ultrasound would be reasonable

Abnormal period: when was last time you had a pelvic ultrasound, you might have polycystic ovary syndrome.

Need more info: This is a common complaint. The best thing is to consult with a OB/GYN physician who, knowing more about your body can give you good advice and guide you to a successful pregnancy.