The first few years of my period were never regular. Once I started having sex with my boyfriend it became more regular (as if my body wanted to tell me that you're not pregnant). I then went overseas, got my period once, but haven't had it in almost 5 months. But I have developed pimples, which I've never had before, except for the occasional one every now and again. Is there a connection? Is this a way for my hormones to get out?