Now I have an angel but want a baby

On the 21st of this month I lost My baby at almost 6 weeks. Before I found out I was pregnant I didn't think I would ever want kids. Now I can't help but miss my baby and I am thinking of trying again. I have a doctors appointment on Tuesday and will talk to him about it then. To anyone who has gone through this.. Is it hard to get pregnant after a miscarriage? Is there a certain amount of time you think I should wait? How did you deal with the stress of being pregnant and not knowing if you would lose the baby again?