We bid a farewell to her our colleague (be more specific since this is the first sentence) who decided to leave the company last month. She said the reason why she leave left is that she wants to focus on looking after a her baby and is going to be ready preparing to have a another one and as well as added there will keep on a journey to have a baby.
She loves babies so much, so she wants to have a lot of babies.
We grabbed a bite / had lunch together (either of these two), and all proposed a toast of juice to for her  at the end of the lunch.

REVISED:

We bid farewell to our colleague who decided to leave the company last month. She said the reason why she left is that she wants to focus on looking after her baby and preparing to have another one as well as will keep on a journey to have a baby. She loves babies so much, so she wants to have a lot of babies. We grabbed a bite / had lunch together, and all proposed a toast of juice for her at the end of the lunch.

Hi Tony, 

Thanks for including the expressions we had last time even you've already made sentences. You still made sure to practice by making written examples here. It's best to sometimes just keep the sentence more vivid and simple as to what you wanted to convey to avoid misinterpretation while using the expressions we just discussed. Take note of the corrections and keep going!

Teacher Neiz