Hi, I Had Two Five Day Blastocyst (donor Eggs And

Hi,

I had two five day blastocyst (donor eggs and my husband's dperm used) transfered on Wednesday the 6th of April. One was hatching and the other not. I woke up in night sweats on the 8th and 9th (Friday and Saturday). Could this be auto-immune system rejecting the embryos or signs of implantation? My blood test for HCG is not until the 14th and I am going nuts waitinh