Gender reveal!

With my first I was single, and found out right away what I was having. Now, fast forward 5 years, and my husband and I are pregnant and we want to find out the gender when possible. But my in-laws are old fashioned and don't 'believe' in ruining the surprise. So my MIL offered me $500 to not find out! I think we will still find out! My family wants to know asap so they can start shopping! Hah.