“Oops” vs TTC

M

Does anyone else wonder how there is such a small percentage rate of getting pregnant every month?? Like, how do so many people have “oops” pregnancies while others try, track and temp and it takes them months/years?!

AF is due next Friday and I don’t feel any “early pregnancy symptoms” at all and I am just feeling really discouraged now... I bought preg tests last week but I don’t even think I’ll try to take one since I don’t feel any different. 😥