Im sooo nervous

Im going to have sex next week for the first time, and I dont know what to do, how do I start, where shood we do it, what poisitions, where can I get condoms,I v never had sex and dont know what to do I need help

It will come naturally.. use protection..please.,,stores sell condoms.

Try looking up how to put a condom on on the internet, I'm sure there's a step by step somewhere. You can buy condoms pretty much anywhere, grocery store, gas station, target, walmart.
Do it at one of your houses, not super exciting, but since it's your first time it shouldnt be too over-board.
Has your boyfriend had sex before? He'll probably lead you through it.
Just be natural. Sex is a natural thing and if you just relax and enjoy it, it's hard to screw it up.

thanx , I can put my mind at rest now.

Its obvious you have NO clue whats going on, and the fact that you are ONLY 13 years old explains why! You shouldnt be doing something you no nothing about, which means there will be consequences for your actions. Trust me, 5 years from now you would have wished you wouldnt have lost your virginity so soon, especially to someone you wont be with for long!