A successor may refer to: Someone who, or something which succeeds or comes after (see success and succession) Successor (horse), an American Thoroughbred racehorse. Successor was the working name for the class of British ballistic missile submarines, since renamed the Dreadnought-class.
How long it lasts: Early labor is unpredictable. For first-time moms, the average length of early labor is six to 12 hours. It's often much shorter for subsequent deliveries. What you can do: Until your contractions increase in frequency and intensity, it's up to you.
Contractions in early labor become regular in their occurrence, from 10 to 20 minutes apart and lasting 30 to 60 seconds. Contractions are measured from the beginning of one to the beginning of the next. The cervix dilates between 0 and 4 cm. Contractions start farther apart, 10 to 20 minutes apart.