Welcome to ehealthforum,
The symptoms that you describe 18 days after IUI could suggest probable implantation if you have conceived or even decidual bleed (if IUI has been successful). If IUI is not successful, it could indicate onset of your menstrual period. Continue to follow the instructions and medications as prescribed by your treating gynecologist. Wait and watch for your periods. If you suspect chances of pregnancy, or if periods do not start within 10 days of expected period dates, or if you get abnormal periods, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and repeat blood/serum HCG level test (to confirm/rule out pregnancy accurately). Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Take adequate rest. Drink plenty of water. Maintain healthy diet. Look out for danger signs like increase in intensity of abdominal cramps, increasing back pain, fresh bleeding etc. Avoid lifting any heavy weights and avoid heavy work. Avoid standing for long durations and avoid climbing stairs. Avoid use of caffeinated and carbonated beverages.
"Ask a Doctor" questions are answered by certified physicians and other medical professionals.
For more information about experts participating in the "Ask a Doctor" Network, please visit our
medical experts page.
You may also visit our Infertility , for moderated patient to patient support and information.
The information provided on eHealth Forum is designed to improve, not replace, the relationship between a patient and his/her own physician.
Personal consultation(s) with a qualified medical professional is the proper means for diagnosing any medical condition.