Hi, i am 13 and a month or so ago i got the ceravix jab and ever since i have had aching pains in my lower abdominal that feel slighyly muscular, i am nit sure if this is some sort of co incidence, maybe that my pipes and tubes are suddenly opening, but i havent had i dont think any other symptoms, my mum thinks though that i am soon going to begin my period, and just to let you know i am a bit of a hypercondriact, but am not thick. Anyway plz help xx