Well it would have been helpful if you had mentioned several other facts like the MCH, MCHC and the MCV which would have been reported. There are diseases where the iron is not incorporated into the hemoglobin and hence the iron levels maybe normal or high but the Hb may be low still. Thalassemia is one such disease but it manifests at an early age, like 5-6months of age, and hence don't fret about it.
Skyla is a small, flexible plastic T-shaped system that slowly releases a progestin hormone called levonorgestrel that is often used in birth control pills. Because Skyla releases levonorgestrel into your uterus, only small amounts of the hormone enter your blood.
1 Over time, your periods are likely to become shorter and lighter, or may stop. About 6% of women stop having periods after 1 year of Skyla use.  About 6% of women stop having periods after 1 year of Skyla use. If you do not have a period for 6 weeks during Skyla use, call your OB/GYN.