d&c question

Hi Ladies,
Unfortunately I miscarried about a month back and had to have a d&c. I was told by one doctor not to conceive for 3 months and another said not until after first period after surgery. So I have 2 questions to those who this applies to:
1- how long were you told to wait to ttc again?
2- how long did it take for your period to come back? 
Thanks in advance :)