Oh goodness, I really feel you on this, being on bed rest at 34 weeks with so much uncertainty must be so stressful, but you're doing all the right things and that already counts for so much. From what I've heard, quite a few mums in similar situations with short cervix and vaginal progesterone (same as your Utrogestan) did manage to hold on till 37, 38 weeks, so it is very much possible! One thing I've come across is the Trendelenburg position, basically lying with your feet slightly elevated above your head, which some mums found helpful to take the pressure off the cervix during bed rest. A friend of mine who had a similar situation also said staying really well hydrated made a difference, as dehydration can sometimes trigger contractions. Hang in there, you're doing amazingly, but do run any of these tips by your gynae first since every pregnancy is different!