what is going on?? please help!

[Butterfly Child]

please need some advise massive roller coaster feel so helpless!!!!

Found out i was pregnant 14th October, DP and i have been TTC and started spotting more so when i wiped on Wednesday lightly like a brown color Wasnt to worried at first but then that night changed color was only when i wiped. then that morning it was a bit heavier went to docs who said it was most likely a miscarriage like i had suspected. Got more bloods done weekly to check my hcg levels were decreasing had a doctors appointent a few days ago and the doctor was dumbfounded as my hcg levels have risen but slowly...

17 October 32 hcg
24 October 293 hcg

doctors ordered me to get a ultrasound straight away and more bloods.. found nothing in my uterus but something on one of my ovaries..
first thought that comes to mind is ectopic but have no other symptoms no pain otherwise well.
( might add i still feel pregnant breasts swollen and sore nausea exhaustion)

3rd blood work comes back :
30TH OCTOBER 692 HCG

get told i need to get straight to tweed hospital be prepared i may need to stay in hospital and may need an opperation etc
Get there and they take more blood and have no idea whats going on.. but tell me they will have to keep taking bloods every 2 days and see if its doubled that i may still have a viable pregnancy or it may be something else.. but to go home and be prepared if i get any pain or bleeding to get to my nearest emergency department as i could bleed internally and my tubes could rupture if it ends up being ectopic..

So now im left feeling so confused a chance there could still be a baby in there or it could be something else on the riskier end it could be ectopic.. now im freaking out and have to wait till tomorow to see if my hcg has doubled (apparently you cant see the baby if there is one untill its at 1500 hcg)

ANYONE ELSE HAD ANY SIMILAR OR low rising hcg in early pregnancy please help feel so lost !!