i wouldnt tell them unless you could harm baby i had just got a 3rd in charge position at katies i was there for abit over a month and found out i was pregnant so then the manager told me i couldnt do that job she ended up dropping my hours down to almost 1 day a week then when i said needed more hours she gave me a 9-9 shift so if you tell them they may not give position even though its discremanation just like my boss i told her i needed min $400 week then instead of firing me she couldnt do that she dropped me down to under $100 it was so dissapointing i ended up leaving at 5mths