Sickness&Nausea 4 days before af due not had before

Basically it’s 4 days till my period is due

I woke up 5 am and sicked a little felt really nauseous then again at 7 am

And then again at half 8!

It was a fluid type (sorry) but me and hubby eat the same things and he’s fine ?

And I’ve also had heat flushes sweaty and constipated 👍

My breast are usually sore before af

A few days ago or a week I had two times happens like a pull or twinge in my lower stomach ??

I’ve tested with a blue dye clear blue at 7 am but nothing

Not quite sure keep testing or give in

Been ttc for almost 3 years now

🤞🏼