Hi!  I started my period about 3 weeks ago after not getting it for 40 days. my periods are usually light and short (3 days) but this one was heavy and longer (6 days). the day after my period ended i started the Pill. about 4 days after starting i experience nausea when i woke up from 6am to 12pm. now i am a week and  a half in and i am experiencing bleeding and cramping and fatigue. Is it possible i may be pregnant or are these just side effects from the pill?