Yes this can be an appendicitis
. When you caught or sneeze your peritoneum
is moving and it hurts when it is irritated by some inflammatory process in abdominal cavity. If you do not have any others symptoms like nausea, mild temperature rise, and higher heart rate
it does not rule out appendicitis, and even observation in hospital may be required.
You need to have a least abdomen ultrasound
and blood tests performed. If it might be a chance that you are pregnant, a pregnancy test should be done.
Pain in this location is characteristic also for an ovaries inflammation and right kidney infection
Hope this will help