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.
When you have sex, sperm are released up into the uterus and Fallopian tube. If you happen to have sex on the same day as you have ovulates, then you could get pregnant the same day. But if you don't ovulate the same day you have sex, sperm can live for up to three days (some day even longer!).So you can get pregnant 1,2 and even 3 days after you have sex. It all comes down to when you ovulate and if there are sperm hanging around or not!The egg only lives for about a day so it's not hanging around as long as the sperm are.Conception means the day the sperm fertilized the egg.hen you have sex, sperm are released up into the uterus and Fallopian tube. If you happen to have sex on the same day as you have ovulates, then you could get pregnant the same day. But if you don't ovulate the same day you have sex, sperm can live for up to three days (some day even longer!).