Is it safe for someone my size to take this kind of iron everyday?

I'm 16 years old, 5 foot 4 and 125 pounds. I've been a vegetarian for 6 years and have never taken any supplements. After slowly feeling more and more sick over the years, I decided that I needed to get iron in my diet. (Being that I usually only eat pastas.) Today I bought a bottle containing 100 pills of 65 MG Iron, (It reads "Equivalent to 325 MG Ferrous Sulfate.) The brand is Spring Valley. I don't have a doctor appointment until the end of July, so assuming I want to take them now I figured I'd just ask here and get tested when I go back to the doctor. So, is it safe for me to take every day? Guaranteed I need them because I take no other vitamins. Thanks for your help!