Thinking to much

I’m new to all this posting but I need some opinions. Last month I swore I was pregnant had all the signs and a couple of faint positives on some cheapies off amazon. I hadn’t told my hubby because I wanted to know for sure before talking to him about it. I went hunting and we got stuck 5 miles in the mountains. So I had a 5 mile hike back to the truck. Which I usually am not that active in my day to day life. When I got home finally I got the faint positives. It was 4 days before my period which will usually be a medium flow for 4 days. The next morning I woke up to a very light pink discharge when I wiped. It was light pink and brown a couple days then acted like a weird period it lasted 7 days. I feel like I might have had early miscarriage. But my body still feels so weird I’m tired constantly and my boobs hurt and are damp and have a ton of cm. I smoke and cigarettes are disgusting now. I took a couple more cheapies and got some bfn and very faint lines. Could implantation bleeding be a-little heavier and last that long. I know I’m probably just over thinking it and probably had a miscarriage or wasn’t even pregnant but I seriously can not stop thinking about it! I am scared to even take a test again because I don’t want to see a bfn. I’m supposed to start my period in 4days and have no signs of my period coming, I usually get signs a week and a half before.