It's common for menstrual cycles to vary occasionally in length, and a delay of a few days is not a serious issue always. Norethisterone is usually prescribed to delay periods, but if you've taken the medicine and still haven't got periods then consult your doctor. 

If you've undergone an abortion and it has been five weeks since the procedure it is unlikely that a pregnancy test would yield a positive result. After an abortion, the pregnancy hormone gradually decreases in the body, and by five weeks post abortion, the hormone levels should have significantly diminished. But also every individual is different, and the timing may vary.. So you can talk your concerns to your gynecologist 

Yes definitely it is possible for a pregnancy test to show a positive result while you are approaching your menstrual period. Pregnancy tests detect the presence of the hormone human chorionic gonadotropin (hCG) in urine, which is typically produced during pregnancy. You can confirm it with another test or urine pregnancy test.

Irregular or abnormal menstrual bleeding can occur due to many reason like hormonal imbalances, stress, changes in contraceptive methods, etc. It doesn't always mean that its about pregnancy. If you are concerned about the possibility of pregnancy, it's advisable to take a pregnancy test to get a clearer understanding of your situation. 

When the contraceptive pill is taken correctly its effective in preventing pregnancy.. but there is still a small chance of pregnancy even if ejaculation doesn't occur inside the vagina. Take a test to confirm

It's important to prioritize the health and safety first and so i recommend you to consult your gynec for your particular case. 

Checkup with your gynecologist. Get proper treatment started if you think it's a problem since long time.

Fast heartbeats can have various causes, including hormonal changes, stress, or other conditions. Regarding your menstrual cycle and trying to conceive, it's normal for it to take some time to conceive. If your're concerned you can check with your gynec and confirm, they might as well advise you further.

Give yourself time to heal and avoid activities that worsen the pain. Over the counter pain relief like also can help but take only as if prescribed by a doctor. Apply cold compress to reduce swelling.

It's difficult to determine the exact cause without further info.. Stomach aches can have various causes which are unrelated factors like stress or dietary changes. If you're concerned about pregnancy then you may take a pregnancy test for confirmation.

Intermittent tricuspid regurgitation or TR) is sometimes found during prenatal screening tests like the NT scan. In many cases, it is considered a normal variant and may not pose significant health risks to the baby.

In this case you should go for second opinion of another experienced doctor. They can evaluate your case and then you can come to a conclusion.

Birth control methods are usually beneficial for those who want to prevent pregnancy or regulate their menstrual cycles. The choice of birth control depends on the individual health, lifestyle, and personal preferences.

Having some variation in cycle length from month to month is pretty normal, and it's also normal for cycles to range between 21 to 35 days. In your case having cycle lengths of 23 days and 28 days is within the normal range.. And pain and cramps during a 28-day cycle is quite normal which almost all women go through. If its really unbearable you can condult your doctor

At 46 years it is still possible to conceive and become pregnant, although fertility generally decreases as women get older. There could be various reasons for the missed menstrual cycles, like hormonal imbalances, perimenopause (the transitional phase before menopause), stress, certain medical conditions, or even pregnancy. 
Since you're trying to conceive, it's important to consider the possibility of pregnancy as well. I recommend that you take a pregnancy test to rule out pregnancy as the cause of the missed periods. If the test is negative and your menstrual cycles remain irregular or absent, it would be advisable to consult a gynecologist.