Hi I'm Moa, 17. I had sex mid May this year and I took a pregnancy test about a week after-negative. I had 2 periods one June one july since then. Here come August I haven't had my period yet, although sometimes it can be irregular but I've just suddenly lost appetite and am slightly nauseaus the last few days & Im just so scared in pregnant. So I took TWO test and they came back negative again! Im also very skinny and my stomach looks normal. Could nerves be making me feel nauseaus is their a chance I'm pregnant? HELP PLEASE