Waiting for af to start Clomid


So quick intro I have a daughter and my fiancé has a son both to our exes we’ve been ttc since Oct 2016 in jan 2017 I suffered my 3rd miscarriage (1st together) went to drs in the March coz of struggling got told to go back in Oct 2017 that appointment got cancelled and I went in feb 2018. I had light spotting last Thursday and still no af I’m on cd 46 today they can range from 26-53 went back to dr today and dr said to try Clomid when I come on as I have cysts on my ovaries. So nervous but excited. Really hoping the Clomid will help. Sorry for long post I just needed to get it all out x