Flying Anxiety/Fear Of Flying when Pregnant?

I have just turned 25 weeks and in 6 weeks time ill be flying to the Algarve however i am terrified of flying and concerned my panic attacks could arm my baby, previously i use to take sleeping pills to avoid this fear/anxiety but being pregnant i can no longer take over the counter medicines plus the doctor told me that was nothing they could do for me apart from providing me with a relaxation cd but that didn't help either when i was 14 weeks and had to fly back to the Uk. Its my mums first grandson and im torn in between face the fear or stay back and remain calm. Could you please give any advice on how to deal with this Phobia????