Successful pregnancy with letrozole when can get pregnant again

Wondering if anyone had a successful pregnancy using letrozole and when they were told they could have another baby?

I had my son almost 7 months ago and he was conceived with the help of letrozole due to PCOs, it was an easy pregnancy and perfect birth no complications. As for COVID it's near impossible to talk to my doctor so I'm curious if anyone was told how long they should wait, if your doctor would prescribe it to you again or do you have to try naturally for up to a year again ?

Any answers would be so helpful !