I'm 17 and my bf and I had sex back in November for the first time. We used condoms and took Next Choice bc I was paranoid and I wasn't on hormonal bc. I got my period on time a week later after taking Next Choice. Now it is December and we had sex again (still used condoms!), and this time my period is about 3 or 4 days late. My cycle is on a 35 day term. I was wondering if the Next Choice could have altered my cycle, or if there is a possibility that I am pregnant. I took a hpt and it came out negative, and am waiting to take another one. I've been cramping and feeling like I'm going to start, but no period! I'm so worried that I might be pregnant somehow, and I try to relax, but it gets harder with each passing day. Any advice would be greatly appreciated. Thanks!