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.
3: Yes, you can get pregnant if you have sex during your period. There's a myth that a girl canât get pregnant if she has sex during her period. The truth is, she can get pregnant at any time of the month if she has sex without contraception.: Yes, you can get pregnant if you have sex standing up, sitting down or in any other position. You may have heard the myth that a girl canât get pregnant if she has sex standing up, sitting down, or if she jumps up and down afterwards.