She took it from August-October.. her periods we're regular 5 days like always. She however missed her period in December no she not pregnant!! but got it in January on like the 6th or 7th n she still on it.. says it's not heavy or cramping alot but is this normal with taking this pill to go so long and or be irregular? Plus her pills didn't have a row that are"inactive" n colored the pills are all white??