@kaytees @Wellthisunexpected
Thanks :-) Mine was sent of at 7 weeks 
Sadly I've had more drugs than ever since being pregnant - now have a ear and sinus infection so on antibiotics and hayfever meds going forward to try avoid a repeat situation plus the thyroid ones
I've spent best part of £60 on prescriptions in a fortnight 
I actually emailed them and they gave me my 'certificate number' which was handy as it can take up to a month apparently.
I'm just nervous of ticking I am exempt without having it in 'my hands' as I have had letters for fines in the past when I used a different pharmacy or when the pharmacy just ticked 'exemption not seen' 