I have been tapering off of Lexapro, which i had been taking for a few years. I should be menstruating soon, but it is getting here a bit late. I have been experiencing the familiar "brain zaps" associated with withdrawal, but I also feel nauseous. I've heard elsewhere that nausea can be a side effect of withdrawal, but I just want to be sure I'm not pregnant. I might go get a test anyway if it doesn't come in the next few days. I have no other symptoms of pregnancy (no fatigue, none of the general "pregnant feeling," no swollen breasts or significant change in appetite), and I don't think it would have been long enough after implantation for me to experience "morning sickness;" I'm just worried.