I honestly thought I was pregnant this time, I have been cramping very badly, my sense of smell heighten, my boobs been sore for about 4 days, headaches, freq6 urinatation I have been very tired lately. I took a test this morning, not first urine but second, i was having line eyes like usual, and I heard taking a opk and it's postive means pregnancy but that looks negative to but it said don't pee on it if you had pee in 4 hours suppose to wait, so I'm not sure, is it to early to test?