You'll likely see this change around 4 to 6 months, when your baby starts eating solid food. That being said, if you still notice your baby is gassy, continue with burping and other gas-relief techniques until you feel they are not needed.
If the bond is trading at par current yield equals coupon rate which in turn equals yield to maturity. If the bond is trading below par (trading at discount) yield to maturity is higher than current yield which is in turn higher than the coupon rate.
If the bond is priced in the market to equal Vbo , then the rate on the bond would be equal to the current yield: R = C/ Vbo. Thus, when a coupon bond has a long-term maturity (e.g., 20 years), then it is similar to a perpetuity, making its current yield a good approximation of its rate of return.