Thanks for your query.
With two negative pregnancy
tests, you are mostly not pregnant.
If you had a hormonal
IUD, you would take some time to recover from the hormonal effects.
The altered bleeding pattern you are seeing , is most probably due to that.
Anxiety, stress, thyroid hormone disorders, adrenal hormone disorders, hectic travelling, changes in weight, ingestion of hormonal medications, polycystic ovaries
, endometrial disease
- all these could be other causes.
Since you are trying to conceive anyways, I would advise a proper Gynecological check up for you.