When can I really try again?

Stephanie • I'm married and blessed with a two rainbow boys! A baby on the way & 3 babies in heaven.
I had a miscarriage 2wks ago and I was 5wks pregnant. :( my doctor told me to wait till my next cycle is over before we TTC. To make sure my cycle goes back to normal.. However, I have a irregular cycle, so why do I have to wait? My cycle has never been NORMAL.