Between Our Hearts by Laura Langa

Sadie and Clark fell hard for each other from the first breathtaking kiss of their whirlwind relationship. With her demanding career as an orthopedic trauma surgeon, Sadie never expected to be lucky enough to marry a handsome, good-hearted man who happily sets aside his carpenter’s tools to be a stay-at-home dad.
Everything is perfect until their hopes for a second child result in loss after devastating loss. Instead of working through their heartbreak together, Sadie throws herself into work to escape her grief, leaving Clark isolated in his.
With the distance growing between them, Sadie’s uncertain she can open up enough to let Clark love this shattered version of herself. But if she doesn’t find a way to reconnect with her husband, even her skilled hands won’t be able to repair her broken marriage.