sex question

so the first time I was pregnant I don't remember this being an issue, but it has been almost 6 years since I have been in my first trimester it's hard to remember. Anyways, I am usually a pretty "wet" person. it might take a bit to get into it, but once I am it isn't a problem. It seems like ever since I have gotten pregnant this time I cannot get wet to save my life. it takes forever, and even then it's barely anything. I know we can use lube, but I just never needed it before, and isn't there a certain one you are supposed to use? Anyone else have this happen in the first trimester and it got better in the second or is this going to be a long 9 months?