To early to test?

ttc for rainbow baby • My husband and I have been together 7 years. Married since Aug 2014. We started ttc in July 15 and got pregnant first month and it ended in an ectopic. We are now waiting for our rainbow baby .
My husband and I just started TTC last Saturday on my last fertile day of ovulation week. I am supposed to be getting my period in 4 days but already feeling nautious, strange cramps in my side, backpack and heart burn. I have the test all ready to go. I really.want to test today, but so you think it's to early?