Has any one experienced this before

Ok I don't know what's going on with me it could be just me or something is wrong or my body is just changing it does that to me once in a blue moon. I have been constipated or as others would say having a hard time going #2 and every morning a get a rush of nausea and every night or evening too and have to go pee a lot well more then usual I been eating the same stuff I always do and drinking the same stuff so I am like scratching my head and saying what's going on and its way to Early for me to be pregnant I am still in my ovulation wait until after tomorrow idk whats going on with me