So I had unprotected sex during ovulation. (Very dumb of me I know) a few days later I started cramping non-stop, & till this day I still am. My breast feel more heavy & are more sensitive. They are sore. I also started having a lot of milky white discharge. I took a pregnancy test when I felt cramping after my period but the test came out negative, I googled it and it said I might've taken the test too early. My period is supposed to come around the 21st should I wait and see if it comes to take another test?