I have a yeast infection, so I bought a yeast infection cream. Can it reduce the effectiveness of the pills?

I just got my pills to insert for my infection but i had sex earlier today. I was wondering should i still start the medication, because my doctor said not to have sex for 6 days. I think she meant not to have sex if i already started the treatment because it is for 6 days but am not really sure. Should i start it tonight or tomorrow night?
Oh yea and can my partner get it. it was unprotected sex because am pregnant.