I think it all depends on you and your husband. For us, we decided to wait a few years and really get to know each other and work on our marriage before we wanted to have babies. Our son still came a year or so earlier than expected... but we are SO glad we waited. We were married for 4 years before we got pregnant.
I really would suggest waiting a couple periods.
We didnt and we miscarried 2 more times after the 1st one :(
Im sorry for your loss, I know it can be frustrating but just to make sure everything goes smoothly Id wait it out at least a period or two