Babies have a habit of working to their own timetable and more than one in five will hang on to 41 weeks or later. So what's the rush to get them to the exit? Well, there's considerable evidence that from 42 weeks gestation the risk of stillbirth, while low, increases significantly along with the chance of the baby becoming distressed during labour and requiring an emergency caesarean section.
Your midwives will probably want to discuss various methods of induction with you by 41 weeks. There are lots of methods proven to get babies moving, from a sweep to a full-on induction with syntocinon drip, but if you're hoping to avoid them, there are lots of natural methods of getting labour started that you can try.
From the sublime (sex and a curry) to the ridiculous (pineapple and a drive over some speed bumps), they may not be scientifically proven to work, but they're definitely worth a go.
Natural ways to start labour
Time definitely moves more slowly once you get past 40 weeks pregnant. Or perhaps it just seems that way: your diary is empty because you were SUPPOSED to be having a baby now, and your day is punctuated only by friends and family sending highly irritating texts asking if 'that baby's out yet'.
Try these methods of eviction. They may or may not work but they will at least pass the time.
Sex
The prostaglandins in the gels used to induce labour are very similar to hormones found in semen, so popular belief has it that having sex can sometimes help. It does seem ironic that what got you into this fix in the first place might be what gets you out of it, too.
At 40 weeks pregnant, sex is probably just slightly more enjoyable than having a sweep, if you can be bothered.
Nipple stimulation
Oxytocin, a hormone that causes contractions, is released in the body when the breasts are stimulated so a bit of nipple twiddling might just kick labour off.
But don't just have a quick tweak – the trick is to mimic the suckling of a baby and massage the areola (the dark circle around your nipple). You can do this yourself, or get your partner to help out, assuming they're not already exhausted from all that sex (see above).