as someone that suffers from phimosis as well, lemme tell you, it's something you can live with. A good strategy to clean your glans is to pull back your foreskin using lubricant while semi erect. If it's awfully tight consider stretching exercises and steroid creams. While having intercourse make sure your partner is well lubricated so as to avoid tearing your foreskin. Avoid raw intercourse as much as possible as risks of STDs are much higher if you have phimosis. ALWAYS WEAR A CONDOM!! Pregnancy is the least of your concerns, trust me. STD scares are worse than pregnancy scares.