I just got my +opk. I bd last night because I thought I should be ovulating. So my question is, should I bd tonight or wait until tomorrow? I know dh sperm won't be as strong tonight because of last night. Tia. And sense I've read all the rude comments on others women's question I would like to clarify that I can read. I've read all I can about ovulation, but I still don't understand how to increase my chances.