cycle day 22 out of cycle 33

Elizabeth
I keep getting brown discharge only tiny amounts nothing when I wipe just in my pantyliner had this since day 17!! Ladies could I be pregnant !! Tits are sore early in the morning then ease throughout the day/evening
Need stories here 
Oh also have felt like I'm coming on last few days only slight niggles in the uterus area. But no blood or spotting what so ever