I had mis-carriage last year around April and I was pregnant again in Nov. Now, I am at around 26w. Mis-carriage is quite common nowadays (around 20% chance), I understand that there is pressure and worries in the following trials, but, don't worry, the only thing that will prevent you from having BB is "Afraid and not dare to try again".
If you have mis-carriage before, be careful at your next trial. Be happy and God will bless you and your family.