It really just means that you are not very animated in your facial expressions, voice tone, and body language. It means that no matter what you are told or what happens to you, you respond the same way outerly, with your body language showing no real change. It also usually means that your voice is monotone, or flat. Physical expression of your emotions are minimal to none.
On average, via Ultrasound, they should be able to detect a heartbeat around 6-7 weeks. However for some women it can be up till 10 weeks. The range of the heartbeat that they feel is good is 120-170 or there about. I hope you are doing well.
While it may be possible to detect a pregnancy as early as 5 1/2 weeks. Because the tiny sac containing the baby and its heart is so tiny, an ultrasound may not be able to detect pregnancy at this stage. If the baby can be seen at 6 to 7 weeks, their heart beat may even be detected. Between 7 and 8 weeks, the baby and their heart beat can both be detected relatively easily. After the 8th week of pregnancy the heart beat and the baby can be clearly seen.