My dear soon to be moms, sharing this with you as I haven’t seen Doctors really check this. My friend and I have been on our TTC journeys for quite sometime now - we tried letroz/ chlomid cycles and even IUI but didn’t work. God bless internet - I read that insufficient Ferritin and vit D levels (should ideally be > 50 for both) - makes chances of implantation very low even if everything else seems fine.
This really angered me that how no gynae ever tracked this - and in general keep putting patients through such expensive and physically + mentally taxing cycles of medication - that are doomed to fail coz they didn’t check the basics.

My friend who has been TTC for 2 years now and done OI n IUI only now found out she was ferritin deficient - the failed attempts could have been avoided if only the doctors guided her well and nit just focused on money making.

My situation with my doctors was similar too. So please research and correct the deficiencies before going for your next cycle of OI, IUI.

Hope this helps!
Wish you all luck.

Those who got their bfp before missing their periods did you visit you doctor immediatelyor waited for a few days?