16DPO BFN

Since about 6dpo I have had symptoms, lower back pain being the worst and tons of twinges in the left ovary. On 14dpo my left leg has started going numb/tingling and my left ovary/pelvic area is super crappy. I took a test today 16dpo period is now 2 days light I am always VERY REGULAR. My boobs have started to itch, still all the same symptoms from 6dpo I’ve even started to have a slight yeast infection. I am going nuts now I don’t know what to do! Is this normal to still get a negative at 16dpo?