It is difficult to become pregnant with PCOD. This leads to irregular periods and issues with ovulation, as well as increased levels of male hormones. Metformin or clomiphene may be used for regulating the menstrual cycle and promoting ovulation. Ensure you take them according to your doctor’s instructions. Fertility in women with PCOD can also be enhanced by losing weight; therefore, it is important to stay healthy. 

Spottin and symptoms may indicate pregnancy take a pregnancy test.. Nausea fatigue and back pain common early pregnancy signs.. Stomach pain could signal a problem consult a doctor.. Headaches can also occur in early pregnancy due to hormonal changes.. If pregnant schedule prenatal care for a healthy pregnancy.

These might be signs and symptoms of other health conditions like endometriosis or pregnancy complications. Consult a gynecologist for thorough diagnosis and treatment.

The reason for the worsening of your periods and insomnia may be the hormonal changes from the surgery or the stress that comes with it. Period insomnia is a common problem that women face. You may also want to learn how to help yourself. Perhaps you could try some relaxation techniques like deep breathing exercises or relaxation baths. If it does not resolve on its own, seek medical advice as the best way to deal with those problems may be to find the one most suitable for you.

While it's less likely to conceive right after having your period, it's still possible to become pregnant at any point in your menstrual cycle, including during the days immediately after your period. 
If you've had unprotected intercourse and missed a period, it's important to consider the possibility of pregnancy and take a pregnancy test to confirm.