Feeling anxious!!

I am 7dpo and I am so impatient so I took a pregnancy test today and it said negative so now I am all bummed out. But I want to think that it's just that it's too early to test! My boobs hurt so bad I cant even stand for them to be touched and I have slight cramping yesterday and today. My husband and I have been trying to conceive for 2 months now so I'm Praying we are actually pregnant and it's not just PMS. I dont want to drive myself crazy by testing everyday but Its so hard to wait!