Pregnant?

My wife has been having cramps in her lower pelvic area since a few days after she ovulated and has been having cramps and period like symptoms since right after ovulating and her period is due in two days and she has white creamy discharge and she says it feels like it’s falling out she’s been testing but they all keep coming up negative and she had two that looked like faint positives but she threw them away because she wasn’t sure and we’ve tested since then and they said negative... is this all just her period?