i am 5-8 weeks late with having my time of the month i dont remember if or when i had it in july thats why i?

thats why i say 5-8 weeks, and i feel the same way i did when i w as with my son , tummy feels like i'm going to be sick but never get sick , some smells make me feel sick , lower cramps , nipples hurt, dont want sex , hair getting fuller but dry at the end , nails growing f aster, always have that wet feeling , in aug at the start of the month i had some pink/brown spotting and i have once that clear stuff come out with red in it , eattings things i hate i mean hate lol , but took 4 test 3 said i w asnt preg and one just gave me a ? Mark . i have the docs at the start of oct, but does it sound like i am or are the test right , but i dont really trust them , and sometimes i get the cramps above my belly bottom ,