Low iron

So I’ve been ttc for 18months, at the beginning of the year it dawned on me to get my iron and specifically ferritin levels checked. I’ve had 2 chemical pregnancies and wondered why I’ve had the loses. Average ferritin levels are 20-200 and I’m sitting on 10. Doctor says that it’s likely my ttc troubles are coming from this. I read this online too. Just in case anyone else has unexplained infertility and wants to get their iron checked. I’m now on strong iron tablets 3 x a day x