Congratulations. U r definitely pregnant because u have missed ur periods and ur pregnancy test is positive. Must meet a gynaecologist asap. She will assess u and give u some medicines for brain development of baby. She might do an ultrasound or refer u to a radiologist for the ultrasound where u can see the pregnancy yourself. During pregnancy, u should not have papaya and pineapple and junk food. Meet ur gynaec asap for further advise.