Hi everyone. I'd like to get your opinions on this specific topic.
Due to the events of ME1 Liara is the one who will always know you best, as you both connected your consciousness together. She will understand what you are, what you need, what you mean and what needs to be done, better than anybody else.
If you are on good terms with or, or in a romance, prior to the final Assault on Earth, she will offer you to meld your consciousness with her and her memories on a never seen before level.
Although she is only 109, barely 19 in human years maybe, and Matrons are the one who normally get pregnant at around 350 years, she was always too grown up for her Maiden stage, leadung me to the assumption that she is willing and capable of beeing impregnated by Shepard, no matter the outcome if the fight.
I find this astounding and not that selfish from Liara as it may seem, as it ultimately shows what Shep has achieved and what she/he means for the galaxy as a whole.
So for me it feels like the Asari Pregnancy is in this case the final showing of trust and appreciation Liara ever could give.