My husband and I have been ttc for about 4 months now. This month I used an OPK and pin pointed when I was ovulating. We bed on and around that time. AF was due on the 28th and has not yet arrived. I have taken two digital pregnancy test both of which came back negative. Do I continue to test or just play the waiting game. I have had VERY regular cycles every 28 days. AF has never been late. I also have sore boobs, but I always do around AF. Not sure what to do or think!