Can DD be constipated from my iron supplement?

vszapp

Poor DD has been ridiculously constipated lately. We started solids about 3 weeks ago (just a small amount 1x/day), and once I realized she was having issues, we switched from sweet potatoes and avocados to pears and prunes. Even after almost a week of those, she is still miserable. We have had to use a glycerin suppository a few times, but they are habit forming, so we're trying to avoid them. I keep racking my brain to think of why she is having so much trouble, and it dawned on me that maybe my high dose iron supplement (slow fe, 45mg iron) is making it into my milk and causing her to have trouble. Is this even possible?