What is the best Pregnancy Test!? Testing for pregnancy tomorrow ?

My husband and I have been ttc for about 3 months now and my period has been late for a week. I keep getting cramps thinking it's my period but nothing. I'm very nervous because I don't feel pregnant, I don't believe I am. But maybe I am and deep down I just don't want to be disappointed. Please help me! Tomorrow I'm gonna take my first pregnancy test and I'm not sure which one works best!