Getting pregnant help!

Carrie
Last Thursday, I found out I was pregnant...long story short...in a series of unfortunate events....I lost my baby on Valentine's Day (3 days later). My husband and I weren't trying to conceive. I have been quite devastated over the matter, and my OBGYN told me I should start trying right away! She said there is no reason for me to wait. My husband and I talked about it, and we said we will now start trying...I'm worried I will have trouble conceiving... Anyone else have this happen? Do you think I should be okay? I am so scared for this to happen again....