Should I take emergency contrapill after recent unprotected sex?

Assuming your thumb was not injured and you only came into contact with semen on your skin, the odds of catching an infection are pretty slim. Most lower UTIs caused by E. coli are harmless and heal within a few days. Make sure to clean your hands thoroughly using soap and water to get rid of the germs. You should consider going to the hospital if you experience abnormal symptoms such as redness, swelling, or itching. 

Your age means that it’s completely normal for guys your age to have wet dreams. It happens when extra fluids are released by the body during sleep Sometimes this is caused due to sexual thoughts, or because there wasn't enough time before going to bed for all necessary liquid releases. You should relax before going to sleep and avoid any stimulating activities so as not increase the likelihood of having a wet dream It needn't be worried about, as this occurs naturally!

Stress, anxiety, or even hormonal changes can all contribute to this happening. There is no need to worry, though, as it is not uncommon and typically not a serious problem. Take some time to unwind and do not stress yourself out about it too much. If nothing helps with this issue then consider speaking with a doctor who can offer further advice on what might be going wrong. 

Masturbation is usually not a cause of pelvic dysfunction. However, the fact is that sometimes, excessive pressure in that area can lead you, in some cases, to discomfort. Signs such as pain, urinating difficulties, or painful intercourse might occur. To avoid this situation, try to take breaks regularly and don't apply too much pressure on that area.