Am I pregnant?

I am aliyafiya from India 26year old.

I have a daughter of 3yrs 9 months old.

I have a very very normal first pregnancy just the last 9th month got me stuck with thyroid.

And a csec.

Well now I am trying to conceive almost from 1year. I'm not able to...

I have been diagnosed with mild pcos but my doctor said I can conceive.

My last period which actually ws not like.my normal heavy flow period only spotting.

First day on 8th August I had little spotting.

9th dark spotting. And then nothing

And now September 8th was my period date and I have no signs of period yet.

I have light pukishness, giddiness and feel very low low. ...

My pregnancy test have come negative ...

What do u think I should be doing.