I am 11 days late on my period I had cramps like I was going to have it but it didn't come. Then the past 2 days I have had like a sharp pain around my belly button and it feals like my stomach is being tugged on every once in a while . Also the tips of my nipples are white . I took a test 2 days ago but it was negative I am so confused and I would like to know some tips when should I take another test or any info would help allot :confused: