Evening primrose oil? ?

Hey y'all I'm 38 weeks and so ready for this baby to be here!! lol not trying to induce really I'm just wanting to prepare my body and maybe get things going. has anyone used epo? I took 2 orally but I wanna try it vaginally but if I put one up my vag will the whole thing melt? I'm really curious lol I don't want pieces of the gel falling out all day.. tia :)