Am I wrong?

Every month TTC so far my SO tells me that I might be pregnant and every month so far I say no I'm not because somehow I just knew I wasn't. However, this month I just feel like I am, all signs lead to being pregnant and I just feel different! Only problem is I keep getting negatives!? Could my woman's intuition be wrong? I told my SO that I think I am, more so I just know it! Anyone else every just knew before a positive result?