I miscarried about a month ago, had a regular period after immediately (5 days) . Question: How long…

I miscarried about a month ago, had a regular period after immediately (5 days) . Question: How long does it take for your cycle to go back to normal? I average 28-31 days for a cycle. I'm only a couple days late, we're ttc #2.. what should I expect? any advice please ladies