I think I'm pregnant but, hpt tests say otherwise 😭💔

Kathryn • I will have a big family one day 💖💖

Well ladies as of today(9-9-18) I am 16 days late, I've experiance some discomfort in the lower stomach area, I had light pink spotting most of the day on 8-30, and I have taken 4 first signal pregnancy tests from walmart one of the being last night! any suggestions? I'm going nuts wondering whats up with me and wether or not theres a baby in my tummy 😭 I've also gained like 5 lbs since the last time I weighed myself like a week or so ago.