I miscarried 3 weeks ago

3 weeks ago today, my husband and I went to the ER because I started bleeding. I was supposed to be 14 weeks pregnant and sonogram showed our baby only grew to 12 weeks. 2 days later I miscarried at home. Nothing could have prepared me for what happened.. I've never been more heartbroken in my entire life. We have a 2 and a half year old son who is our rock. As of right now, we aren't necessarily 'trying' but we had sex the other night for the first time since everything happened and decided to leave it in Gods hands. I need some support. My emotions are all mixed up. I want to try again, but I'm absolutely terrified.