My doctor told me to take the test Sunday

I had my first period after have my son July 12 it ended July 17.

After after the 23rd I started have light red some times dark light bleeding I think for 4 days.

On the 9th my period was due but instead I had light cramps and they just went away....

It’s the 12 my period is 4 days late.

I’ve been experiencing tiredness and a lot of saliva.

Please help me im so confused

I want to be pregnant....

If you had a kid did this happen is it normal or I’m i pregnant.

I need answers!!!!