I'm 5 weeks 1 day pregnant!!

Let me start by saying this is my first child second pregnancy. Last January I had a miscarriage just before 8 weeks and it devastated me then and still does. It took my husband and I over a year to conceive again and I can't help but be so worried that it's gonna happen again. I want to celebrate but I'm afraid to get to excited then have to go through the heartbreak all over again. I'm afraid to do things that i would normally do and anytime I have cramps I start to freak out. Has anyone else gone through this? Any words of advice to help me get through the next 7 to 35 weeks?