Ovulation pain

Has anyone ever experienced cramping/ pressure like pain at ovulation? This is my first round of femara and I had my u/s done to check for mature follicles and I had 2 one at 13 and one at 19 I received the trigger shot the next morning and was told I would ovulate Wednesday evening (today). However now I'm experiencing cramping on both sides and gas like sharp pains and pressure like feeling. I have never felt this before. Any advice?