Is it possible...

This may get confusing, so I apologize in advance lol. So my last period was oct 12. So I should've ovulated oct 26. So I was due for my period Nov 9. But I was late and I was having a lot of early symptoms of pregnancy. The biggest thing was my fatigue, I had never slept so much in my life. Well 5 days later on nov. 14 I got some light bleeding and it lasted about 5 days but it just felt so different from my regular period. I knew something was up. I continued having pregnancy symptoms since then and they have increased. I've had bad headaches and felt so nauseous that I threw up. I can't remember the last time that's happened to me. I've been bloated for almost two weeks, and I rarely ever get bloated, let alone this bloated. Heartburn and lots of burping which i never get either. Still tired, queezy all day, dizzy whenever I get up, strong sense of smell, get full really fast, backaches. Is it possible that I didn't actually ovulate on oct 26 and i ovulated later, maybe oct 31 and then that bleeding I had was implantation bleeding? If I am pregnant calculating from my last real period in oct 9 I would be 7w1d. But if it happened later then maybe I'm not even 4 weeks yet? So could that be why I got two negative hpt results? Im so confused ?