What is it

Me

1 week PO and 1 week before cycle. Yesterday and today I have brown discharge (I usually get some brown discharge before starting cycle but it’s going on 2 days now which isn’t typically normal for me) and I woke up feeling nauseous and got sick this morning. Pregnancy tests are still negative. Anyone experienced this before getting a positive test or I just crazy!! Lol baby fever is so high, want that positive result