Firstly, I am not a solicitor...
However I would suggest that you speak to an employment solicitor immediately even if it costs you an hour. There are very specific regulations regarding redundancy and being given notice etc. The employer also needs to have an impartial 'rating' of all other potential candidates for redundancy and be able to show how they arrived at that result. Being pregnant is not as far as I know a legal reason.
Book an appointment with an employment lawyer and get the facts... Good luck
