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.
In the context of a secondary bond trade, the effective yield is inclusive of the quoted price plus the total cost (or markup) of the transaction. Example: A bond may be quoted with an Ask Price of 101.00 and a corresponding Ask Yield of 5.60%. If the concession per bond were $2 per bond, the total concession for 10 bonds would be 10 X $2 = $20.