Ttc after letrozole&metformin baby

So I have PCOS, irregular period before and have only had 4 postpartum cycles (out of 9), and my daughter was conceived when I was taking metformin twice a day and letrozole for 5 days.

Now.. I’m wondering if anyone has had any luck conceiving naturally after that combination. Or solely on metformin twice a day?

If so, how long did it take?

If not, what worked for you?

Same combination again?