Optimus

- You did

- You brought it up casually

- He was surprised at first but he was ready to have a baby with you

Ultra Magnus

- You did

- You had been wanting to have a baby

- He was hesitant at first but you were able to convince him that he was ready to be a father

Ratchet

- You did

- You asked him if he ever wanted to have kids

- To your surprise he said yes

Bumblebee

- He did

- Each time you both would go out for a walk he would stop each time someone with a stroller passed by and look at the baby

- He also practically begged you to have a baby with him

Arcee

- She did

- She had been looking at pictures of newborn babies online

- You told her that you were also ready to be a mom

Smokescreen

- He did

- He brought it up one day and said that you would make a great mother

- You couldn't help but smile at how happy he was when you said that you were ready

Bulkhead

- He did

- He brought it up casually

- You told him that you were ready

Wheeljack

- He did

- He brought it up by flirting with you

- As soon as you said that you were ready to be a mom he carried you to your bedroom