Is this your first pregnancy? Wondering what different types of contractions feel like and when they should start? Here's how to tell true labor contractions apart from other types of contractions -- including false labor and Braxton Hicks contractions.Is this your first pregnancy? Wondering what different types of contractions feel like and when they should start? Here's how to tell true labor contractions apart from other types of contractions -- including false labor and Braxton Hicks contractions.