Any one else experience this?

Hey guys! So last week I was getting a mixture of positive and negative test results. I was 7 days late and then all of a sudden started my “period”. It lasted for 5 days. Went to the dr to see what was going on and ultrasound came back clear and looked good. Well they did a beta hcg and it was a little elevated. Was at a 14. I had to go back this Thursday to get more drawn bc midwife thought i was having an early miscarriage. Well my hcg levels were higher, 157. I am so confused and don’t know what is going on. I guess i was wondering if anyone has ever experienced something similar to this and what was your results?