Many women complain about being forgetful during pregnancy. Whether it is remembering to fetch something from the shop or having mis-placed a very important paper somewhere. These were women who were probably their best before pregnancy. These little "oh, I just forgot" moments are called 'Pregnancy Brain' or sometimes as 'Momnesia'. About 64 per cent would-be mothers complain of difficulty to find the right words or focus on tasks than before they were pregnant, found a survey.