For the roller coaster, see Sewer Rat (roller coaster) . The brown rat, also referred to as common rat, street rat, sewer rat, Hanover rat, Norway rat, brown Norway rat, Norwegian rat, or wharf rat (Rattus norvegicus) is one of the best known and most common rats.he brown rat is the species common in England, and best known throughout the world.
1 Yes,you can get pregnant after ovulation. 2  There is a 25% chance of getting pregnant during ovulation,and a 5% chance when not ovulating. 3  The egg does not survive for more than 24 hours after ovulation unless conception has occurred.
Yes, you can. So if you don't want to get pregnant, it's best to use a reliable form of birth control as soon as you start having sex again after your baby's birth. That said, it's true that you may not ovulate for several months (or even longer) after giving birth, especially if you're exclusively breastfeeding your baby.