I am 17 weeks and suffering from sciatica. I work for the NHS. I had one day sickness at the start when only management knew I was pregnant when's morning sickness wouldn't let up and I have given in trying to make my way in with this back pain. I have just had a phone call from our sickness team stating another period of absence would result in me being referred to a HR review. In my history in the nhs I've had maybe two periods of absence and now I'm worried they will put my job/mat pay at risk if I'm off sick again during my pregnancy.