Still no Period, Am I pregant?

Me and My fiancee have been trying for a baby and we had sex mostly everyday when I was ovulating. About 2 weeks ago I got a few specks of blood in my underwear and was getting cramping like period cramping and mild Nausea. I am 5days late now and I took a pregnancy test the day after i was due on my period, and I got one dark pink line and white line with maybe a little pinky tinge but was hard to tell. I am now 6days late and still no period.. when should I take another test and does anyone think I am pregnant? Thanks A lot :)