I have gone through your description. There are many reasons for ear pain
- it may not be just in case of ear infection
. For example, with your description, it could also be a pain in the ear due to temporomandibular joint arthiritis (I am not suggesting this as a diagnosis but trying to tell you that there are many causes and not just infection causing ear pain as the nerves that supply the ears also supply other near by regions and can give sensation of pain from conditions in those areas). As you are carrying, it is better you visit an ENT specialist
for thorough examination and diagnosis.