cycle after chemical pregnancy

Hi all. I had a chemical Pregnancy on my third <a href="">ivf</a> cycle at the end of august. Worst tease of my life! My hcg tested negative on sept 1 and I never bled from the chemical and my period is no where in site! I'm getting impatient and wanting to start again! For those of you who had chemicals how long did it take for you to get your period again?