My Gf Is Expected To Have Her Period On The

My gf is expected to have her period on the 16-18 of april but we had unprotected sex in april 6. And we had already taken some PT on APRIL 17 and 22 which all came up negative but she do have some early signs of pregnancy because of her boobs getting bigger and the aerolas and nipples getting darker, weight gain and cravings for sour green mango