he had sex with 3 other women. Im 14 ,now have a bump

Hi,
Welcome to ehealthforum,
The bump that you describe could be a result of infection, latex irritation if it has appeared after your sexual intercourse. If it persists for more than 2-3 days or if it gets worse, you should consider visiting your doctor/gynecologist for thorough examination to look for the underlying cause. Treatment as appropriate (based on examination and investigations results) would be started to help you. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Avoid any self manipulation. If infective cause is detected, get your partner also treated simultaneously to prevent chances of re-infection. Avoid vaginal douching, use of harsh soap or perfumes in the area. Use loose cotton undergarments and avoid use of tight fitting clothes.
Take care.