Help, am i maybe pregnant or going mad??

Currently 11dpo and af is due on Saturday (14dpo). Everything started last Thursday (5dpo), The smell of bacon made me feel sick and had cramps lower left side (similar to the ov cramps I had), Hot flushes came Sat (7dpo). Sunday (8dpo), woke at 11.30am (😲), feeling very sick & dizzy. Cramps more painful. Breasts not tender but sensitive. Hot flushes, dizziness & nausea have remained.

Last night however, my Right Nipple felt very itchy and upon examination there was a drop of yellowish, sticky discharge! This looked almost identical to the colostrum I experienced with my eldest 6 years ago.

I'm patiently trying to wait until Saturday to test but it's making me crazy.