Progesterone suppository vs oral?

My husband and I did a few fertility treatments after our second miscarriage since we had a hard time getting pregnant at all anyway.
The doctors had me always use progesterone suppositories (vaginal) around cycle day 15. 
This cycle I never took any until I get a positive pregnancy test. Now my new doctor prescribed me the same dose but it's an oral capsule. THEY look identical. Is that weird?!