If you were to get a mortgage for £120,000 at say 7% due to your adverse credit rating, this would cost £700 per month on an interest only basis - so no real saving for you. And I imagine rented accomodation would cost just as much.
My gut feeling is that if you can stay in your current property until you leave for maternity, then ask your IP for a six month payment reduction or holiday until you return to work. It would also be sensible to try and work out what your family budget will be upon your return - ie you will be receiving child benefit and tax credits (if your combined income is less than £50k), but there may be added costs associated with childcare which will need to be taken into consideration. Also you may decide that you do not want to return to work full time.
It is never to early to plan for the financial future, so get your partner together this weekend and go throught the figures as best you can. Your IP will thank you if you go to him/her with a well thought out plan, because do bear in mind that our advice is only as good as the data provided to us.
Keep posting if you have any other queries. I, and the other forum experts, are happy to help if we can.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk