16 doing and no period it's like 2-3 days late

I'm not sure I'm pregnant but feel a strong possibility I am. 6 dpo and 9 dpo started cramping. 12 dpo started having AF feeling. 14 dpo I missed my period felt AF feeling. 15 doing nipple started getting lightly sore now 16 dpo I have an headache, lower back killing me, stomach slight bloated. And veins on my breast. And before 12 dpo I've been feeling so sleepy every since. And I've been craving certain foods instead of sweets. ( 10 dpo took a test it was negative figured it was too early) trying to give it time before I take another test, tired of disappointments. Any one feeling similar??????