hello good day...i been done ivf 2 wks ago but it was failed?(negative result)...may question is after the implantation i never feel relax nor to sleep on myback.i can't urinate normally,i feel severe pain on my left side of my back,abdomen till now im experiencing it...what is the mean cause???for two weeks i never sleep on my back fo a long time i can't tolerate the pain,most of the time sitting on the chair jst to comfort my self....hope to ur emmediate reply..Thank you,God bless!