Should I buy a doppler? Where can I buy it? How much does it cost?

If you wish to listen to your baby's heart beats at your home, you can purchase one. It is quite fun to detect the baby through a fetal doppler. You will need to purchase the device itself and gel. You can purchase from a local online shop, Qoo10 for about S$40 http://list.qoo10.sg/item/GLOBAL-CARE-MARKET-FETAL-DOPPLER-BABY-HEART-RATE-MONITOR/404966115