Weird HCG trends?

Hello! I am so confused about what is going on. I had a faint line on a FRER on 11/19. It eventually darkened up and I got very dark lines. Here are my betas:

November 24- 116 November 26- 91 December 1- 556 December 2- 742 December 4- 901 December 6- pending

I have had 3 transvaginal ultrasounds and nothing has been seen yet and they have not seen any indication of an ectopic forming or fluid pockets developing that would indicate an ectopic pregnancy. My Dr is okay with continuing the serial HCG trend unless I begin hurting on one side or having any other symptoms but she seems to want me to go ahead with the methotrexate shot. I have a history of tubal reversal with one tube showing partially blocked and the other 100% blocked per HSG due to scar tissue growing back during healing after the reversal. I have had 3 chemicals since that surgery with my HCG only getting as high as 59.

On 11/30, I began heavy bleeding w/clots and it has since slowed down significantly while my HCG continued to rise. My last actual period was 10/13/2025 and my cycles are always 38-40 days. I have no idea when I ovulated or how many DPO I am because I wasn't tracking.

Has anyone ever heard of something like this? I am so confused and so is my doctor and said shes never seen anything like this happen. This is a very desired pregnancy but I am also guarding my heart about the potential outcome.