There is no direct relationship between determining whether you are pregnant and taking progesterone capsules. For taking progesterone capsules after abdominal distension, do not do the examination is not directly determine whether the pregnancy, you can use early pregnancy test paper for detection, or go to the hospital for further examination to determine whether the pregnancy. The main effect of progesterone capsules is used for the treatment of preeclampsia and habitual abortion, premenstrual tension syndrome, anovulatory dysmenorrhea and anovulatory amenorrhea, and combined with estrogen to treat menopausal syndrome. Progesterone capsules should be taken under the supervision of a doctor. Adverse effects of taking Progesterone capsules include bleeding, breast swelling, nausea, dizziness, headache and fever. The instructions do not indicate that abdominal distension will occur, so abdominal distension may also be caused by other reasons, such as cold, gastrointestinal flatulence or gynecological disorders such as pelvic inflammatory disease, etc. You should go to the hospital to clarify the cause of the disease under the guidance of a doctor and undergo further examination. Medications should be used as prescribed by the doctor.