Vagina question ..!!

My vagina has been having a weird smell lately. I can smell it when I'm sitting criss-crossed & deff when I'm having sex. I just went to the doctor and I'm clean and have no infections or anything.
But My boyfriend has been cumming inside of me lately and might have a pregnancy scare, but just waiting to start my period on the 22nd.
I'm not sure what's going on, please help!