My midwife told me to phone the GP to tell them I am pregnant and constipated which is apparently very common. GP had a prescription of pregnancy safe laxitives waiting at reception by the afternoon. Might be worth giving them a phone call?
I’m eating half a dozen dates and dried apricots a day which has helped immensely. Plus there have been some studies that six dates a date in last weeks helps labor, so might as well! Picked up for decent money at local market rather than expensive shop ones!
Get on the phone to gp, they should be able to prescribe over the phone if your surgery do phone appts (just ask). Movicol or other powder that you make into a drink. Plus if you get things on prescription it's free with exemption cert. You will probably want something ready for after birth too so that the first loo visit is as gentle as possible.