Hcg levels not doubling

Shanice

I missed my period (1/5/19) took a few pregnancy test (1/9/19) which came back positive had an appointment (1/11/19) with my obgyn to confirm my pregnancy which they did and calulated me around 4-5 weeks. I was super excited I’ve been trying for a few years. Then (1/12/19) I started to spot nothing major but the next day (1/13/19) the bleeding was heavy no cramps though so I went to the emergency room they said my levels were low (38) for 4-5 weeks and my cervix was open a little and I was experiencing a miscarriage I should be cramping soon and passing tissue. The next day I called my obgyn and she suggested I come in to get my bloodwork done (1/15/19) they did the bloodwork and my levels went up (72) they called and said I needed to go to the emergency room ASAP to get my levels checked again and an ultrasound done because they believed it was an ectopic pregnancy. Bleeding has stopped by then. I went (1/18/19) nothing was found on the ultrasound no sac and my levels went up again (96) doctor suggested I get my levels checked every three days said they could of calulated how far along I was wrong. My bleeding started back up Sunday (1/20/19) I went back Monday (1/21/19) and my levels went back up (151) and my bleeding increased Tuesday (1/22/19) since then I have been passing clots and heavy bleeding no pains and I only change pads every 2-3 hours. They said if it increases to every 30 mins to an hour and I have pains I need to go to the er. My doctor calls yesterday (1/22/19) and suggested I get a D&C procedure done because they believe it’s a abnormal pregnancy and I won’t carry full term because I have been bleeding and passing clots and my levels are not doubling. Suggested it might be in my tubes instead of inside my uterus. I had to go back today (1/23/19) for bloodwork and today my bleeding has slowed down not too many clots. My hcg levels which I should get back tomorrow I’m praying that they double. Today my doctor said we can wait until my levels reach 1,500-3,500 because then the ultrasound will show something whether it’s in my uterus or outside my uterus. I’m so scared I’ve never experienced anything like this. Have anyone else gone through this? What do you think is happening?