Super quick authour's note: Turian/human hybrid? Why not :)
Creating Wonder
It took a lot of time and work to try to conceive. The tests weren't painful, but they sure weren't comfortable either. The salarians were doing everything they could but…it was becoming harder and harder to try to make two different DNA's compatible.
But not all hope would be lost. In fact something finally did happen. On the one year anniversary of the Reapers defeat, Shepard and Garrus received the news they had both been waiting and praying for.
The tests finally came back positive. She was carrying a child that would contain both human and turian DNA. It was incredible. Of course it was possible Shepard could miscarry, but the salarians promised to keep a watchful eye on Shepard to be sure she carried the child to full term.
In nine months, Shepard would be a mother. In nine months, Garrus would be a father. Both of them couldn't be any happier.