Has anyone used this

Has anyone used primrose oil inside ur vag close to delivery and if so is it supposed to leak out ? I had a panty liner on and I had to pee so I held it for a hour and a half and then I had to go cook . but later on I noticed a lot of liquid in my pantry liner I smelled it and it smelled like oil . Is it supposed to come out or should I stick another one in me when I go to sleep ?

Btw my OB suggested me to do this I’m almost 40 weeks