Some unlucky women experience the onset of morning sickness earlier, at around 4 weeks, but on average women will start to experience the symptoms of morning sickness at week 6.

All of the above anomalies can result in irregular periods following a miscarriage.

A one year olds leg muscles should have developed enough for them to stand on them, with help for balance. Their legs should be able to support their weight. A one year old may be able to take steps between pieces of furniture, holding on to them for support, stand along without help for a short time, or take several small steps on their own.

An 18 month old should be able to speak at least 6 words, and should be able to communicate using familiar gestures, such as shaking his or her head, nodding his or her head, and pointing.

Blockage of the fallopian tubes, often caused by pelvic inflammatory disease — an infection of the female reproductive organs can contribute to female fertility problems.

Studies have shown that approximately 40% of patients with diabetes and/or glucose intolerance between the ages of 20-50 have PCOS.