Trying for baby number two

Hi everyone my fiance and I are trying for baby number two and I'm getting mild cramping and aching at the bottom of my belly, not all the time just odd times during the day. Has anyone had this and had a positive or negative test?? I didn't have any symptoms with my first born before I found out I was expecting and we were trying last month and didn't have any cramping/aching and I came on. I'm 3 days before I'm due to come on