So frustrated!

Nicole
My period is due Saturday (10/3). I had spotting starting last Friday that went for four days (brown only no red). Never had spotting like that. Was thinking implantation and i really thought I was finally pregnant. Now today bright red spotting. Have had some pains here and there and cramping over past week which could all be normal pregnancy cramps. Now I'm worried about ectopic or just plain not pregnant. And I'm concerned it's a more serious issue and I'm going to end up with fertility difficulties. So emotional today as it was and now the bright red. There's a good part of me that's ready to stop trying. I want to be one of those ppl that doesnt realize they're pregnant until 2 months into it!