Because this isn't your first baby, your baby can engage and then disengage and then do the dance all over again There's a bit more room in the pelvis for them to float around. For sure, the pressure of the baby's head on your cervix might aggravate the Braxton Hicks contractions. Make sure you are well dehydrated and keep an eye on them - if they go away or stay twenty minutes apart, there isn't likely to be anything really going on with your cervix.