12 dpo-Faint Positive then two neg results?

Ok so my AF was due on June 9th.. I took a test at 12dpo which was June 5th..First one was Equate( l l ) & it was a faint pos.. &then at about 5pm I took a FRER & it was neg.. On June 6th, I started spotting reddish pinkish for 3 days then it stopped.. Which is VERY unusual for me.. So the next day I took another FRER & it was negative also.. Here I am about 24 dpo & have been feeling nausious every morning, breast are tender, I feel bloated, & headaches... Anyone ever been in the same situation??