Should i seek a second opinion?

Today i went to KKH to get a scan of my baby. The foetus was there but according to the gynae there is no heartbeat. However, there are two conflicting accounts that i've heard: Lady who did the scan said its at 5 weeks+ Gynae said its 8 weeks+ They are giving it the benefit of the doubt and highlighted possible miscarriage. Im quite anxious over this - wondering if i shld go to private to seek second opinion?