i had sex for the first time march 31. we used protection. a week later i read the pregnancy symptoms and started feeling nervous, my stomach felt upset, and i felt like i could throw up but never did, i was so worried. then i started my period april 11 and quit worrying. but i read u could have ur period and be pregnant.. my period lasted 6 days and seemed to be normal.. yesterday (april 19) my breasts started hurting.. but now they dont so much.(heard they grow when u start having sex) ive been gettin headaches, i think they are sinus migraines, which made me light headed.. i have a decreased appetite too..and i havent been constipated. do yall think i might be pregnant?