Many women spend much of their early adult lives trying not to get pregnant. But when you finally do want to start a family and it doesn’t happen right away, it can leave you feeling frustrated. Not to mention, trying to get pregnant month after month unsuccessfully can be emotionally taxing. You should know that you are not alone, and that unexplained infertility is exactly that– unexplained– so no finger pointing as to who is at fault!

Oral drugs used to stimulate ovulation include clomiphene citrate and aromatase inhibitors. While taking these drugs, you will be monitored to see if and when ovulation occurs. This can be done by tracking your menstrual cycle or with an ovulation-predictor kit (an at-home urine test). You may be asked to visit your doctor for a blood test or ultrasound exam.


There are many studies comparing success rates between clomid, letrozole, or gonadotropins for patients with unexplained infertility, but two stand out as the best and most informative. The first study was conducted at multiple sites across the country and was termed the AMIGOS trial. In this study, gonadotropins produced the highest pregnancy rate, followed by clomid, and then letrozole. However, almost one third of all pregnancies in the gonadotropin arm was either a twin or triplet gestation. This was significantly higher than the clomid or letrozole arms.
Regardless of pregnancy result, IVF treatment is usually stressful for patients.[42] Neuroticism and the use of escapist coping strategies are associated with a higher degree of distress, while the presence of social support has a relieving effect.[42] A negative pregnancy test after IVF is associated with an increased risk for depression in women, but not with any increased risk of developing anxiety disorders.[43] Pregnancy test results do not seem to be a risk factor for depression or anxiety among men.[43]

For women, intake of antioxidants (such as N-acetyl-cysteine, melatonin, vitamin A, vitamin C, vitamin E, folic acid, myo-inositol, zinc or selenium) has not been associated with a significantly increased live birth rate or clinical pregnancy rate in IVF according to Cochrane reviews.[30] The review found that oral antioxidants given to men in couples with male factor or unexplained subfertility may improve live birth rates, but more evidence is needed.[30]


Repeated failed rounds of IVF can help identify causes of infertility. For example, if sperm and egg quality are normal, then the conception issue may be rooted at the embryonic or implantation level. In other words, if IVF fails to result in pregnancy despite successful fertilization, embryonic development or implantation may be to blame. Still this is a very expensive way to start getting answers.
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