Hello dear
I understand your concern
Reduced menstrual flow could be due
hormonal imbalance, recent illness/weakness,
anemia, or some times
pregnancy as you suspect, over weight, mental stress, pelvic or
vaginal infection.
Pregnancy test will give positive result 8-10 days after the missed period.
I would suggest to go for pregnancy test and or blood HCG again after 3-5 days to confirm the pregnancy.
Reproductive hormone analysis, vaginal examination and swab test will help in management.
Avoid stress, take healthy diet, do regular exercise, drink plenty of water.
Hope this may help you
Contact HCM for further health query
Best regards
Dr. Sagar