Hello My girlfriend has had consistent irregualr period. Always a few days late. She has missed a month once before. She had a period on October 19. She missed all of November and had one on December 22. We have had intercourse and occasionally wothout protection although we are confident we didnt ejaculate inside of her. She began to have bleeding on January 5. What could this mean. Another period just less than 2 weeks from each other.