I'm worried that I might be pregnant


I had protected sex on December 19 but me and this guy didn't check if the condom broke or slipped off a little.I started have really sore breast and sharp cramping pain on and head aches and have a very sensitivity nose I could smell stuff other people couldn't it just made me feel nauseous and I'm bloated all these symptoms started January 1.My breast are never sore before my period.My period is January 11