¿Por qué sangro después de orinar y siento dolor vaginal?

Periods can  be delayed not only due to pregnancy but also other factors like stress and anxiety, etc. Try a pregnancy test if you're concerned.. if the test is negative then visit a gynec for irregular periods problem.

You have a small cut on your vagina after you were intimate. This is no surprise because the skin down there is delicate. It might cause pain, redness, or a bit of bleeding. To speed up the healing process, you can keep the area clean and dry, avoid using scented products, and apply a gentle cream or ointment recommended for cuts. 

Get your hormone levels checked for hormonal imbalance

It can be distressing and many factors actually contribute to a loss of libido. Stress, relationship issues, hormonal imbalances, certain medications, medical conditions, or emotional factors can lead to a low sex drive.

Bleeding through after menopause is not a normal occurrence and may be an indication of another serious disease. With these symptoms, sher should consult an Obstetricist to determine the causes of such complications by determining if there is underlying issues like infections etc. This requires an expert.