Hi there, an employer is not allowed to discriminate against you because you are pregnant. I know that they can get away with it by just not rating your interview performance highly (i.e. they don't say it's because you're pregnant, but they see your bump or you tell them at interview so they find other reasons to knock you back for the job) but now you're at the stage of getting the offer, if you are healthy you can't be knocked back. I think you have to be honest on your form, otherwise that is grounds for your dismissal!