ok ladies I took a test last night and it was negative but I have been nauseated and having weird…

ok ladies

I took a test last night and it was negative

but I have been nauseated and having weird discharge...

I am not breastfeeding

my period hasent returned since I gave birth to my son and me and my husband have been using the pull out method since 4 weeks PP , how will I know when I should test ?

I mean if I already feel sick shouldn't I of had a positive result if I was pregnant ?