How can I increase blood flow naturally?

In that case discuss your options and determine the safest and most appropriate course of action for your situation. Your doctor can assess your pregnancy, and provide guidance on the safest and most appropriate approach, which may include medical abortion if you're within the gestational age limit.

There is no chance of getting pregnant from sperm touching your skin.

The possibility of pregnancy depends on the timing of sexual intercourse in relation to your menstrual cycle. Sperm can survive for several days, so conception is possible if you ovulated earlier than expected or have a shorter cycle. If you're concerned take a home pregnancy test after your missed period. 

usually it's a simple procedure with slight discomfort.

A blood hCG test is a sensitive test that can detect pregnancy earlier than most urine pregnancy tests. A result of 2 mIU/mL is considered negative for pregnancy. Consult your doctor if you are still concerned.

A painful cyst contained between the anus and vaginal opening that brings discomfort should be treated by a medical specialist. This may point at an abscess or infection and should be immediately attended to by a gynecologist or colorectal surgeon. Moreover, a doctor should also be consulted and the causes for regular stool or hemorrhoids investigated.

Bacterial vaginosis – one common yeast infection with symptoms such as an absence of menstruation, odorous white discharge, which accompanies a burning, itching, or soreness. It frequently occurs when the HLB of bacteria and yeast gets unbalanced due to which bacteria overgrows. Also, ensure to keep the area away from wetness and name, this lowers the chances of developing this infection. They are generally cured with a course of antibiotics.