first time mom... having bad anxiety

So I've been having major anxiety! First time mom, married, financially stable. Shouldn't have any worries and we were trying for a baby. I was so excited we both still are but I've been having anxiety every single day... it's so scary. It makes me wonder if I really am ready. I'm 29, I feel ready, but the anxiety is making me feel otherwise. I'm 5w3d Anyone else experience this? Will it go away? I've tried breathing exercises but it doesn't always work..