thanks for your query.
you should get yourself thoroughly investigated by a gynecologist for irregular periods
Stress, anxiety, weight fluctuations , thyroid
disorders, polycystic ovaries
or uterine/ovarian diseases may cause this.
Also, for you to feel fetal movements, you should have been atleast 20 weeks pregnant, and it would show by then.
Please consult a gynecologist, because sometimes, irregular bleeding continues to occur and the lady is unaware of the pregnancy