The brown coloration of the toenail may mean subungual melanoma, which is skin cancer in the nail bed. It is essential to see a dermatologist or even an oncologist for the right diagnosis and treatment.

It will be your OB-GYN who will figure out the exact date when conception took place. She will provide further guidance during your pregnancy. It is of crucial importance to see a competent specialist, if there is any question of a problem related to pregnancy.

It is critical to have any swelling on the pubic region reviewed by a dermatologist if ever sighted. Without looking at the swelling, it is impossible to know what it can be. 

A random pink lump adjacent to the pubic area could be an ingrown hair or a cyst. It would be wise to have it checked out by a dermatologist or a gynecologist to rule out any other disorders.
 

Missing periods can be caused by several issues ranging from pregnancy, stress, weight changes, hormonal changes, and certain medical conditions. It is important to go to a gynecologist who does a comprehensive physical examination to establish a conclusive diagnosis. 

If your menstrual bleeding continues for 15 days, it is pertinent to visit a gynecologist without further delay. This may be the symptom of more serious health issues, e.g. fibroids or endometriosis.

Seek medical consultation from a specialist in case of any infertility. These may include endocrine problems as well as congenital tract obstructions. The fertility specialist can examine you and prescribe treatment options accordingly.

I recommend you to do not depend on such claims made by non-professionals. Testicle injury-induced hormonal imbalances and fertility problems require an expert urologist who treats this type of ailment. Masturbation is unrelated to testicular health and should not be perceived as a way of checking or improving it. 

I recommend you to see a gynecologist or a reproductive endocrinologist for consultation. They will be able to find out the reason for your wife being infertile and will offer different possible solutions. If it comes to egg concerns, then the fertility doctor can recommend some assisted reproductive techniques such as egg donation or IVF. 

These symptoms could indicate early signs of pregnancy. It can only be diagnosed medically through a pregnancy test. It is advisable to go to a gynecologist to have a proper diagnosis and counsel regarding prenatal care.

These symptoms suggest that the liver is damaged and medical assessment by a gastroenterologist should be carried out on an urgent basis.
 

According to your last period date and unprotected sex, it might be that you are pregnant. On the other hand, a negative urine test cannot guarantee non-pregnancy. To confirm your pregnancy I would suggest consulting a gynecologist.

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There is a possibility that your Achilles tendon is strained causing pain and swelling specifically in that area. It is advisable to consult an orthopedist, who will diagnose and treat your condition appropriately. 

Unprotected intercourse during menstruation can raise the risk of sexually transmitted infections (STIs). Protection, such as condoms, should be used to limit the chances of STIs. Please go to a gynecologist or an STI expert wherever you sense any panic or signs.