Anyone ever had decidual bleeding you thought was a period?!

So long story... but I'm gonna try to be as detailed as possible. I was due for AF Saturday the 8th of april. I started spotting Thursday before and I thought it was coming early- but usually when I spot before af it gradually gets darker/heavier. I lightly spotted for like 3 days. Friday we left for Gatlinburg. Friday night we got into a jacuzzi tub (like a bath tub with jets) and ended up having sex in there. Saturday all day still light spotting- like I was wearing a panty liner and there was just a few spots and a little when I would wipe. I was also cramping this whole time and I was like almost sure this was implantation spotting. So anyway Saturday night we decided to actually get into the outside hot tub. We turned it way down and took the top off so it would cool down. It was literally Luke warm. When I got out of the hot tub I went pee and when I wiped there was bright red blood. I put a tampon in and cried myself to sleep. Lol Sunday I was super emotional all day. Crying over stupid stuff. Monday we drove home and my bleeding was getting lighter. I wore a panty liner to bed Monday night and by Tuesday the bleeding was done. I had maybe a few times I wiped with spotting. My periods usuallg last 3-5 days and this was really only 2. Since then I've still been having cramping- sore breasts- waves of nausea and dizziness- headaches- I wake up super hungry which is not normal. I took a test yesterday morning with fmu and bfn. I am super stumped bc i truly feel like I could be pregnant but I also don't want to get my hopes up too much. I've Googled alot and alot of things say that they didn't get a positive til 1-2 weeks after their bleeding. Oh and I keep getting sharp pains on either one or both sides of my ovaries. Has anyone else had a similar situation and gotten bfp?! I'm kinda freaking out. I told myself I was out when I started bleeding- but with all the symptoms my husband even agreed that he thinks there's a possibility I could still be pregnant. What do ya'll think?!