I can empathise with your concerns - I was given this advice and elected, after much thought and research, to take the steroid injections prior to my elective c/s at 37 weeks (required due to low lying placenta). I think you need to read the research very carefully - looking at your first link, and the link to the original paper, the relevant bit here I think is the following: Betamethasone and dexamethasone are long-acting substances (with biological half-lives ranging between 36 and 54 hours) [35], so it is unlikely that sGC treatment close to the time of birth could significantly impact fetal brain development as there would not be sufficient time for the drug to induce maximum effect. Thus, we excluded cases who had been exposed to sGC ≤4 days prior birth (n=11). My steroid injections were less than 4 days prior to birth (99% certain of this, but it was over 5 years ago). Also the numbers involved in the trial linked to are very small. I seem to recall accepting that the risk of lung development issues was significantly high enough to outweigh any other concerns and last thing I wanted was for my child to end up in ICU due to something I had been given the opportunity to prevent. No signs of any issues with my daughter. Best wishes with your decision making and with the weeks ahead for you.