HCG Levels

Kellie
Hello, I am 4w5d since my LMP. I have had some sharp pains in my left lower abdomen with a constant pressure there and some menstrual like cramping in middle lower tummy on and off throughout the last few days. I have low HCG levels and have been getting them checked every 48 hrs since last Tuesday. On Tuesday they were 33, Thursday 105, Saturday 188. They are much lower than the doctors want but they aren't giving me any other information they just continue to tell me to get bloodwork- I haven't been in the office. Could this be a viable pregnancy or is it more than likely a tubal or miscarriage? Please be honest! Thanks!