Not sure when I ovulated but I’m due a period in 3 days. I’ve had a heavy feeling in my uterus and tonight have twinges on one side. I will try and post a picture. A very very very faint shadow appeared within the time frame the type you have to bop it pull flip it reverse it kind of line to see it, can’t capture it on camera but I’m sure it shows up on a negative image but not sure please shed some light!