Hey, I just started shaving my pubic area recently too. You can get shaving gel or cream, and a little baby oil on the area after shaving really cuts down on the itching, and can help keep the skin soft incase of ingrown hairs. Just remember not to shave over the same area too often, and give yourself a few days inbetween each shave, especially when you just start. The razor burn should go away after awhile. Good luck =)
It's just razor burn sweetie!! NOTHING to worry about at all. Try using shaving cream. I actually sometimes put deodorant down there after I shave. It can help with the bumps and the itching.