Thank you for reaching out to our interactive community and Welcome :-)
If you have already applied for a residence permit based on having a child and the lady has informed you that they will let you know soon, you should probably just wait.
The important question here is: what happened when you received a negative decision on your case? Have you appealed the decision, do you have a Duldung? Have you been asked to leave the country?
If you have a legal status that allows you to stay in Germany and your application is currently being processed, it would make sense to wait until you hear about your Aufenthaltserlaubnis. But consulting a lawyer or seeking legal advice from a refugee council/ pro bono legal aid service is definitely a good idea, if you haven't already done so.
Here are a few threads where questions around residence permits have been answered:
Question about Vaterschaftsanerkennung
How can I get a residence permit for Germany having a German child?
I hope this information is helpful. Feel free to reach out to us again if you have any more questions!
All the best,