Hey Jac- there is nothing clear out there about the times for these but generally from 34 weeks for RLT is fine (It doesn't induce labour - just assists with the uterus) and EPO can be from around 36 weeks I think. If you are inserting then more like 38 weeks from memory. Maybe you could call your carers and find out? I was going to check with my midwife last week and forgot but am going to get some RLT and EPO this week. HtH!

ETA - HERE is a thread on EPO that might help.