Not sure what topic this goes under...

Kelli
Hey all,
Sorry but I'm new to glow and not sure where to ask this. Been having the cramping right after orgasm, which I know from previous pregnancies is a symptom. Took a test today and the positive line showed up first and then disappeared. Period is still three days out...any ideas? Anyone else had the cramping but no other symptoms? (I know it's nothing wrong with my ovaries) 
Thanks :)