Hello dear
Understand your concern.
Pregnancy is not possible in presence of period.
Menstruation required co ordinate action of various hormone that secreted by ovary (estrogen and
progesterone) and brain (FSH and LH).
If any above hormone is decreased or increased there is imbalance in menstruation
Following are the cause of early and light bleeeding:
1.
Hormonal imbalance
2. Dysfunction of ovary
3. Uterine fibroid
4. Adenomyosis
5.Rare: cancer of ovary, uterus, cervix
6. Thyroid problem, endometriosis
7. Stress
8. Excessive weight loss/gain
9. Pelvic inflammatory disease
10. Cervicitis/vaginitis
If problem persist
So I think yous should
consult doctor.
Do the following test
1. Blood test: FSH, LH, Estrogen, progesterone, HCG, Thyroid hormone, ESR, CBC, Blood clotting abnormality
2. Pelvic examination
3. PAP smear
4. USG
Hope this may help you
Best regards
Dr. SAGAR