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.
How does this amount of levonorgestrel impact the body? Most women using Skyla (>95%) have their usual changes in estrogen and progesterone each cycle, and most release an egg each month. Many women using the Mirena (75-85%) are having their usual hormonal cycles after a year and still releasing an egg.