Can I be pregnant?

My husband and I have been trying for 4 months now with no luck. This month had sex 4 times during oluvation. I am 10 dpo and I have had some weird cramping, horrible sleep and vivid dreams. I have been extremely thirsty first thing in the morning and heighten since of smell. These are all new things to me. Should I test early or wait till after aunt flow is supposed to come?