Hcg level question.

Maya
Hi, everyone. My husband I have been trying past year for our 2nd baby. But toward end of the year 2016, we decided to wait until we are done with house, move in and get settle down. We are 40 and 38 years old. Our first child passed away at age 3 in 2005. So it been 15 years. I had some bleeding problem for past 3 weeks, past 1 week just spotting here and there. My gut told me to take pregnancy test and it came back positive. Went to doctor and had blood work done past Thursday and result was 262 Hcg level. Had 2nd blood work done this Monday and result is 309. It didn't double up. Doctor want me to get another blood work done tomorrow so I'm going after I get off work tomorrow.  Is it too early to think maybe I lost the baby? I don't have any sign from my body that I'm pregnant at all. I'm sorry for the long post.