If u conceived your first child through ivf then better to consult doctor at the start of periods that is on first day or second day of periods
If u concieved first child normally then anytime is fine
Next Steps
Take folic acid tablet 5mg once daily atleast 6weeks before planning
Health Tips
Many have concieved and delivered healthy babies during this pandemic,and now that things are getting better i dont think so u need to worry a lot,just take required precautions against covid