Confused!

Sorry ladies but this is a long one!! So I'm feeling very confused this week!! End of last week I was feeling bloated, heightened sense of smell, and more gassy than usual...same symptoms from my first pregnancy (that was January and miscarried at 5w5d). So I took a test Monday and got a very very very faint positive. I started bleeding that day, had very bad cramps for 2 days, same exact way it happened in January only this time I would have only been 4w2d. The bleeding has basically stopped, just some light spotting now. I took another test Thursday morning bc I wanted to make sure if it was a darker line that I got to the doc asap, well there was no line whatsoever. The majority of the signs are gone completely except that since this morning I am all of a sudden very nauseous, and a bit gassy again. Any chance I could still be pregnant even though yesterday's hpt was a bfn?? I'd love if this one stuck, but I really don't think it did, I just don't know what to think. I read that some women don't get a +hpt until 8 or more weeks. Is there any reason to still hold on to hope for this one?! 😕😔