Very Painful Ovulation

Is it normal to have pelvic pain during ovulation? For the past few months I have the worst pelvic pain that lasts maybe a week and a half. It's not only the one sided pain but it's across my entire lower abdomen and it's very tender as well. I'm not sure if that's the reason I haven't been able to conceive or not but I have an appointment on the 5th for an ultrasound. I guess I'm just a little worried as the pain doesn't really sound normal to me. Anyone have experience with this? Please help. Any advice is appreciated.