Women's intuition

So my husband and I are the only ones who know that I'm pregnant. Im only 5w4d. I'm not showing, I don't usually drink so that shouldn't tip anyone off, we haven't bought anything baby related yet, but randomly yesterday my mother in law goes from talking about Pilates to asking me if I was pregnant. When I laughed and asked her if I looked pregnant and what would make her ask that, she said I didn't look it, she just thought she should ask. 
Either she is psychic or has some serious female intuition.  Anyone else have anything like this happen?