They very likely will Carl, as you will have less disposable income to pay across.
You can mention it to your IP now if you like, but definitely when the baby is born and payments are assessed.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk
Yes have a discussion with your IP and see what can be done after your CSA payment has been assessed. You more than likely would have to seek a variation from your creditors.
Regards, David Mond, Insolvency Practitioner for over 46 years. Personal Insolvency Practitioner of the year 2012, Personal Insolvency Practitioner of the year finalist 2013 & 2014 awarded by Insolvency & Rescue Magazine and 2015 finalist for Personal Insolvency Firm of the Year.