Cycle day 45, no AF, could I be pregnant?

My husband and I are TTC and my LMP was on May 8th. According to my calender, I have been having 41 day cycles and AF should have came on June 18th, which would make me 4 days late. I have been slightly bloated and have had headaches, but other than that, I have not noticed any other symptoms. However, my cervical mucus tends to change from being slippery and clear to creamy and milky white in color. What's going on? Am I pregnant?