Girlfriend from Another Universe

Over the past two and a half years, Kara Zor-El from Earth 38 and Barry Allen from Earth 1 have been in some sort of relationship.

"Remember how we celebrated when I got home since you only had two hours before you had to leave?" She recalled the memory in her head. Barry released a small laugh as he remember too. "Well there's a small but possible chance that I'm pregnant."

Barry's eyes widened. He blinked, flinching a tiny bit. "Pregnant?"