I had BH from about 25 weeks in my previous two pregnancies. Although I did go into premature labor with my fourth baby (due to polyhydramnios which also gave me more BH than the average healthy pregnancy) I carried my third until 39 weeks so it doesn't necessarily mean that you'll go into premature labor. However that doesn't mean it is impossible either. Just keep an eye on the clock. If you notice that you're getting more than three an hour, drink a glass of water and rest as much as you can. If that doesn't work, drink another glass. If you're still getting them after that, or if they become more frequent, definitely call your midwife/doctor.