35days late. Still negative

Day 35 almost 36 now and still no period and at home pregnancy piss tests 3 have said negative. It has been 35 days since my last period i have taken 3 pregnancy tests...all negative. My periods are usually between 28 and 30 days nver more than 31. I have some signs of pregnancy like spotting, fatigue, headaches, backaches, increased urination, increased thirst, and super emotional. wondering if there is still a chance i am pregnant and it is just not showing up in my urine? Should I be hopeful that i got pregnant. I also performed a at home test with bleach and my pee. That test foamd up so fast witch indicates pregnancy... Help ladies am i pregnant?