Nothing serious

Grace • Been married four years. We have three boys and two kid`s before we got together. He got a vasectomy and now we`re just living life! :)
My husband had a vasectomy in January when I was pregnant with our third child ( each of our fourth). And even though I've always had late periods and skipped months at a time I still worry it's going to magically reverse itself. So now that I'm about two days late part of me is like go get a pregnancy test! But the rational part is telling me not to be stupid. Does anyone else get these unrealistic pregnancy fears? Or am I the dumb one. Lol.