5 DPO... maybe I am???

My husband and I BD 5 times during my fertile window. I'm pretty sure I ovulated 2 days before the app said I was. I had watery, EWCM, 5 days later now I'm getting small amounts of creamy sticky CM. Yesterday I started feeling a cold come on (which I never get them) and my breast/nipple are getting sensitive/sore. I have on and off slight cramping, super turned on, and exhausted. This would be our first if I am. It says I'm 10 days away from my period (I know I'm not PMS because I get upset very quick and cry) I dont feel any of the PMS symptoms. and I'm pretty regular on a 24 day cycle. Have other people experienced this before they got pregnant??