Uterine, Fallopian tube, or ovary twitching

Ok ladies, has anyone ever experienced wat feels like your Fallopian tubes, ovary, or uterus is twitching? I am currently on my 3rd day of my fertile week, and I'm not exactly sure which day I ovulate. But I do have an average 28 day cycle I would assume I do ovulate on day 14. So with all this being said do you believe that the twitching is a sign of ovualtion being near? I've tried researching it an a lot of women have mentioned it as well. Some say gas, and some say ovulation. I think I know if I have gas, and it's way different feeling then this. It feels similar to an eye twitch or muscle spasm. I have done 5 opk's all negative so far... So has anyone else experienced this right before ovulation?