Having some bleeding or spotting 13 days after your IUI while taking Duphaston (dydrogesterone) can happen. It may be due to hormonal fluctuations, breakthrough bleeding, or occasionally implantation. Because you are 13 days post-procedure, the best next step is to contact your fertility clinic for a pregnancy blood test. Please continue taking your Duphaston as prescribed unless your doctor advises otherwise. Your clinic is your best resource to provide personalized guidance and support right now.

In the 8th month of pregnancy, you should not start or continue Duphaston 10 mg on your own unless your doctor has specifically advised it, as it is usually given earlier in pregnancy for hormonal support. It will not help with headache or back pain. For those symptoms, rest, hydration, posture care, and a safe pain reliever like Paracetamol (if suitable) are better options. Please consult your doctor to confirm whether you need to continue Duphaston and to evaluate your pain properly.

Duphaston (dydrogesterone) is a progesterone medication used to support the uterine lining or regulate cycles; it does not stimulate follicular growth. In a longer 37-day cycle, ovulation naturally occurs later, so finding 6mm follicles on Day 11 is not unusual. Medications like letrozole or clomiphene are typically used for follicular stimulation instead. I highly recommend discussing these tracking results with your fertility specialist to determine the best plan for your upcoming Day 16 ultrasound.

Both Duphaston (dydrogesterone) and Susten (micronized progesterone) are widely used and considered safe to support early pregnancy. While micronized progesterone is FDA-approved in the US, dydrogesterone is approved and trusted globally, though not currently marketed in the US. Dizziness is a common side effect of progesterone. To help manage this, try taking your doses right before bed or resting for a short period after your morning dose. Staying well-hydrated and rising slowly from sitting can also help. Please consult your doctor to see if your dosing schedule can be safely adjusted.

Yes, your pregnancy can absolutely still be viable. At 8.3 mm, the gestational sac is still very small. Typically, we do not expect to see a yolk sac or embryo until the sac measures over 10 to 20 mm. Because you have irregular cycles, you are likely just much earlier in your pregnancy than estimated. The fact that the sac is growing and you have no pain or bleeding is very encouraging. Continuing your prescribed progesterone and human chorionic gonadotropin (hCG) support is important. Your doctor will likely schedule another ultrasound in a week or two, which should give you a much clearer and more reassuring picture.

Taking Duphaston (dydrogesterone) for five days will likely alter your timing. Generally, after you finish the five-day course, your period will arrive within two to seven days as hormone levels drop. If you do not wish to delay or alter your current cycle at all, it might be best to hold off on starting it. I highly recommend discussing your specific goals with your doctor so they can tailor the treatment to your needs.