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.
After this time your chances of conception decrease dramatically. All this means that you could conceive after ovulation, but if you would like to get pregnant it is best to maximize your chances of a pregnancy and have intercourse even before ovulation. The best thing you could do is to find the pattern of ovulation to be able to make predictions.