Nausea & cramping during ovulation 😖😭

So I'm in my fertile window from what glow says, last AF started 15 days ago so I'm thinking glow is right. I'm having very uncomfortable cramps in my lower back & abdomen, not sharp pains but dull soreness + this nausea is horrible, and just hit me today! 😖I've never had this before so is it normal? Anyone else have symptoms like this when they o?