Double line fever

So I will be a month late next week and no positive pregnancy test. I am having some symptoms. Problem is most pre period stuff is the same as early pregnancy. I ready that around 4-6 weeks the body starts to produce the hormone that shows up on pee test. Is this true. I am just kind of freaking out. I took three test last week. I am obsessed. I have taken the most costly test the regular kind the .88$ ones. Lol. I am going crazy.