What is this?

Amber • Married to the love of my life,and ttc!!
So me and my husband haven't had sex since Monday... We had sex last night and I wasn't into it at all.. Like I wanted to have sex but I felt way to wet and open down there:/ usually I'm alot tighter than I was last night. What's this from? My period is 14days late... So we are hoping to test soon and get a bfp but not getting my house up. Just curious as to why/what it means when your really wet and more open down there??