"Pregnant with first child and cannot be seen as..."

I am pregnant with my first child in my late 20's and although I have called for 3 weeks chasing and pushing for an emergency appointment as instructed by my midwife consultant as my eye drops can cause early labour. I am now at 16 weeks I am now getting very concerned. I have been pushed from pillar to post and will still not be given an appointment because staff are on holiday! This is obscene! The standards are slipping and I am going to be asking for a transfer, I expect more than this when it is not only my health at risk but my child’s as well. I am not being taken seriously at all.