3 Cycles Late, Am I Out?

Celeste

Hey y’all, I’m having some conflicting feelings. I’m almost 3 cycles late, I’m 45 days late for my period in October. Missed that one and my November one. Took a few pink and a few blue dye tests. I’m NEVER late, but I keep getting negatives. Am I out? Could I not be producing enough HCG? I have all the symptoms. Horribly achy breasts, fatigue, nausea, sore nipples, boobs are HUGE, like my fiancé even noticed lol. Has anyone ever been pregnant and not had a positive at home test until way later? Is my cycle fucked? Help!!!!!