Thanks for the query.
Recent disturbance in health, medications can affect the menstrual cycle to some extent.
Though you are having some symptoms of pregnancy
, as both your test results were negative, even after 10 days of missing the period, the possibility of pregnancy is some what doubtful.
In that case the symptoms you are having could be part of premenstrual syndrome
Anyhow you better go for blood test
for pregnancy once, to rule the possibility.