Hello and welcome to HCM!
Thanks for posting your query here.
If periods are delayed pregnancy
is not the only condition. A few conditions like low haemoglobin
count, harmonal changes, age factors, diet factors and health status will affect the periods.
bHCG hormone is the indicative of being pregnant. If the urine and blood test
are negative there are very less chances of becoming pregnant. You can repeat the test after 2 to 3 days.
The discharge seems to be a bloody and scanty discharge. There are chances of anaemia- where your hb level will be below 10gm/dl. The exact physical changes in your breasts are not mentioned by you.
The breast changes in pregnancy will take atleast 3 to 4 months time. So you can rule out
the pregnancy very happily.
Please get your blood count check. If a problem persists consult gynaec.
Hope this helps to you.