I am a 27 y/o female TTC via AI. I have been tracking my ovulation with OPK test strips and now a digital OPK, but I don't think I ovulated this month? I went ahead with 3 AIs over the time when I should have been ovulating this month (the first two without TYB, and the third with TYB as this one was shipped). Could uterine cramping after about 36 hours after last AI and terrible back pain and nausea about 48 hours after last AI be a reaction to the TYB? I don't think I could be pregnant because of the negative OPK strips this month, but could this be a reaction?