Does Cramps And Frequent Urination Indicate Pregnancy?

I missed my period. I had unprotected during my ovulation days, the day or two I Had cramps & couldn't stop peeing at work. I figured my period was just coming but it never came which it was 3 days ago. Since then, I still pee like crazy, have abdominal pain and cramps & im often constipated or have diarrhea. It's hard to sleep sometimes but I've been really moody and tired now. I took a test 3 came out negative and one came out a/ a faint line. Please help me. It may be to early since it's only been 5 days since my ovulation period & 4 for my period.