A young writer tries to accurately research her novel by getting pregnant and having an abortion, only to find out that she is infertile.

I almost wish the ending did not give away the character's journey's end...

Agreed with DPG.

I'll add that I'm not clear on how she can get pregnant and be infertile, the logic here doesn't work.

End of story.

Or is it the beginning?? And if so, what does she do now?? ?What becomes her objective goal?? ? The logline sets up a situation for a plot -- but doesn't follow through with a plot.

Consult the guidelines under the "Our formula" link at the top of the web page for guidelines on writing an industry standard logline.