Am i pregant i had a huge headache last night and i feel like i have one now, i ate two bowls of cereal?

i had two pieces of big chicken, i drank alot of fluids my period came on but real lightly, i had a bag of dry cereal and i was still hungery i had a sharp pain in my side and my last night. and it was hard for me to go to sleep but i woke up at 5 oclock today which i neva have in my life i am waking up earlier and earlier now and i almost feel alsleep in church but didn't thank god i have been having a real nauseous feeling and the aerola of my s are getting darker and i had unprotected with my fiance who is about to go to the army and i am trying to start my career in child care by going to college and he is in college until he leaves for business and management