Separate formula and medication and ‘nicely’ request a visual check. Remove items from the undercarriage of strollers before approaching the security check point, to prevent annoying other passengers. If parts of your body (e.g. replacement hip or pacemaker) are likely to beep, ask your doctor for a letter and request private screening. 

Flying while Pregnant - If you plan on taking plane trip while pregnant, discuss it with your doctor first. Your doctor will probably let you go - except in the very early stages (when miscarriages are more likely to occur) or in the later stages (when you may be more likely to go into labour).

Most airlines have regulations regarding how late into a pregnancy you may travel. Some require a medical certificate from your doctor before travelling, confirming that it is ok for you to travel at this stage. Check with your airline before in order to avoid any problems after arriving at the airport