Just keep in mind that most moms go over 40 weeks. Many reach 41 weeks or even safely reach 42 weeks.
Also, stress and anxiety work against labor by causing your body to produce adrenaline, which inhibits the production of oxytocin. Relaxing, helps reduce adrenalin and encourage oxytocin production. It is also believed that feelings of love also produce oxytocin. Try to relax and stay calm. Spend some time with your partner or loved ones. Prepare baby's clothes and spend time in her room. Get a pedicure. Take warm baths. Watch your favorite movies.
Also, let gravity help you. Walk and stay up right, as long as you are comfortable.
I'm 39 wks also n haven't loss my mucus plug yet n only 7 days to go as of now I haven't dilated but I go to the Dr tomorrow to c if I have.. the Dr said some dnt even lose their mucus plug. But I'm thinking I'll go over the due date because I dnt feel he's trying to budge. Well good luck looks like were. N the same boat