Can anyone help

Lauren

So my period due in 11 days I had positive test 3 days ago on strip test it was light thin line and had colour ( could possibly be ident line maybe) and then took test yesterday was negative on friday I was seriously tired barely stayed awake all day and had bad nausea aswell today I woke up with bad pain on left side on pelvis or overie area going little on my hip aswell do feel little I'll today but not alot just wondering did anyone experience this and then find out was actually pregnant or think maybe ovulated early. I have lost alot weight this past month so this is all new to me as got told my weight could be reason I'm struggling to conceive

Thank you for reading my post