Hello I Am 20 Yrs Old I Am Sexually Active

Hello I Am 20 yrs old I Am Sexually Active & Wanting To Get Pregnant. Im Concered Because I Missed My Period In April of 2016 And I Ended Up Getting A Period on May 5 But It Was A Weird Different Period.... I Just Started Bleeding Today I dont know If Its My Period.. But It Started Off As Blood For About An Hour & Now Its Just A Faint Pink.... Can I Be Pregnant ? Or Whats Going On ....