this is my first pregnancy and i noticed that i had diarrohea before i even knew i was pregnant and also on and off for the second month. even now, ending third month, at times they can be quite soft but not runny, sorry, (TMI). i read that it quite normal and that every body responds to pregnancy differently. also it could be due to a change in diet and excercise for the better as once you find out you are pregnant you normally 'try' to start eating better.