SWEDEN – The furniture giant IKEA wants women to pee on their most recent advertisement.

The ad doubles as a pregnancy test offering a discount on a crib for expectant mothers.

The news source Adweek tweeted a photo of the ad, which ran in the Swedish magazine Amelia.

Mercene Labs helped create the ad to effectively test women’s urine. The lab said they rely on antibodies to test for pregnancy.

The strip on the ad will change color to indicate positive results and the discount will be revealed.