Hello, My girlfriend and I are trying to conceive. Her last period started on June 25. we had sex on July 3,7,8,14,15,16. She is having really bad cramps , bloating ,darkening around the aerola i think thats what its called or around the breast . I see veins going down to her nipples on her breast. they are sore sometimes to the touch, going rise in temperature, urinating every tens to 15 mins. she took a test on the 20th and it was negative. Should I wait and take a test after the 25th which is her period date? she is 23 and I am 26.