You didn't say what sex you are, or whether you have a small medium or large frame. At 130 pounds, if you are male with a small frame, you are a bit underweight. Female and small frame, you are at the bottom end of the range of normalcy.
" Do any of you think this could possibly be from losing fats in my diet from being vegan? I should probably know more on this, but does cheese and other dairy products have fat that I could not be getting now that I am vegan?"
Well of course, if you dropped cheese and other dairy, most of which are high in fat, and didn't substitute something else high in fat, or didn't up your intake of either carbohydrates or proteins (they can get converted to fat) to make up for the reduction in fat, you will be getting less calories than you got before. Whether the reduction in fat is "because you are vegan" or simply because you reduced your intake of fat, is not an answerable question. I couldn't tell you if you are eating enough as a vegan, to maintain your weight, unless I stalked you before you became vegan and continued to stalk you after you went vegan, and saw what you ate.
Did you have other fats in your diet besides dairy fat? Did you increase them to make up for the decrease in dairy fat, or add new fats? If not, you are going to lose weight. But your weight loss wouldn't be the result of your going vegan; it would be the result of going vegan improperly.
I don't know where you live, but where I live, I consider it almost a must, if one is to drop dairy products, to eat a lot of almonds, sesame seeds, and flax seeds -- the staple oil seeds -- as well as a variety of other oil seeds, such as sunflower, poppy, coconut, squash and pumpkin seeds, filberts, walnuts, pecans, brazil nuts, and macadamia nuts. Avocado and olives are good oil-fruits. Plus you might want to add cold-pressed oils to things like salads, soups, and stews. These seeds are pretty much a must.
However I recommend staying away from fried and sauteed foods. I recommend staying away from industrially hydrogenated oils -- shortening, margerine.
You need to make sure you get the dietarily essential fatty acids, with the omega 3 fatty acids being the key ones. Omega 3 sources are flax seed, flax seed oil, walnuts, and walnut oil. Oddly, walnuts are high in omega 3 fatty acids, while pecans are not.