Freeway prequel

I strongly knocked twice and she opened the door slowly. It was obvious that she wouldn't have dreamed in a million years that she'd see me again. I could tell by the look on her face that she was at least mesmerized by the look of us.
'Nikki...? Honey? she looked at the baby. My goodness, is it yours?'
'Mom. I don't have much time. This is Aaron. He's only one month old, and he's your grandson. Now i know this is too much to take right now, and I wouldn't have come to you if it wasn't urgent.'
I never expected that she would react like that.
'What happened? How can I help?'
'Mother, I need you to keep him here with you for a little while...please.'
'What did you do? How...how can you have a baby and not tell me? Who's the father?'
'Please. I can't be long. We've got to go. Will you do this for me?'
My heart stopped for a second.
'You're gonna have to give me some answers. Of course I will do this. We'll be fine, just go.'
'You can't tell anyone about this. Not the police, not anyone.'
'The..police? Nikki...'
I spontaneously hugged my mother, then I rushed out the door. Alex was waiting in the car. We got on the highway and drove anywhere.