I just got my first positive OPK in quite a while (the line would never fully darken) on Sunday. BD Saturday and Sunday. This morning I woke up with horrible nausea and have thrown up twice in ten minutes. Don't think I've caught a stomach bug as I don't necessarily feel sick aside from the vomiting. It almost feels like I have butterflies but I have no reason to be nervous for anything. Just weird and figured I'd pick your brains as to what it could be causing me to get sick after possibly ovulating?