AliBB finished the 2 shots in Dec/Jan. Usually, people will take the flu shot before winter time to avoid getting flu in winter/spring. AliBB did not have any side effect after the shots. You can consult your doctor to see whether it worths to take the shots now, as the flu season is nearly over.
For flu shot, babies need to take 2 shots, half the shot each time, and the 2 shots need to be taken at least 1 month apart, i.e. if you take it now (end of Feb), the 2nd shot will be (end of March), and, it takes a few weeks for babies to develop the 抗體... so... Why your doctor waits until now for this suggestion??
BTW, have you taken chicken pox? I think this is important to take chicken pox... If you haven't and if you plan to take flu shots, i.e. you could only take chicken pox at end of April (again, 1 month apart between vaccine)...
For OC, will see, if weather is good in the morning, I might go in the morning and leave by noon... what do you think?