When your menstrual period is 20 days late, and you have such symptoms as gaspiness, nauseousness, headache, haemorrhagic pastula – it’s high time yo seek a gynecologist. The negative pregnancy test result together with the IUD you have may signify that there is an underlying medical condition which needs to be treated. You should visit a gynecologist specialist to receive the right treatment and get the correct diagnosis.

Sperm linger inside your body for several days and therefore a woman can readily become pregnant. Some early signs of pregnancy are a missed period, tiredness, and vomiting. If you suspect you are pregnant, a home pregnancy test can be used to confirm it.

Menstrual cycles are not only affected by pregnancy. There can be many reasons causing irregular periods including stress, weight changes, hormonal imbalance and even underlying medical conditions. It is advised that you seek a gynecologist's help to get a proper diagnosis and treatment.

Missed periods can be due to various reasons, including stress, significant weight change, or hormonal imbalances. However, it’s important to consult with a gynecologist for an accurate diagnosis and appropriate treatment

It could be due to hormonal changes, because hormones take some time to return to normal levels. But if its along with fever and pain, it may be an infetion.