ok lady's I need help I spotted on the 10 th and. 11 th of November and my period was due on the 17 of November and I haven't gotten it yet. but I took a PT before my missed period and 5 days after my missed period and still got a bfn but I keep use the Doller tree pt and Everytime I take it .it will always dry up or show a shadow on it should I buy a different brand test? I haven't tested since the 19th of November what should I do please help me !!!