Sure. When your'e pregnant you congested more often and more easily.
Increased levels of pregnancy hormones like estrogen are thought to cause swelling in the mucous membranes lining the nose and may even cause you to make more mucous. What's more, your blood volume increases by 40 percent during pregnancy, causing your blood vessels to expand to accommodate all that extra fluid, which can lead to swollen nasal membranes as well.
Pregnancy can also aggravate your allergies or cause you to be sensitive to allergens and other irritants even if you've never been before. Whether you think your congestion is allergy-related or not, it can help a lot to avoid any potential irritants, such as cigarette smoke and alcohol (which you should already be avoiding!) as well as aerosols and sudden temperature changes.
Hope this helps... I google everything too....