Lemon & mint can prevent me from being pregnant°o°

Lalla
Can lemon or mint be reasons that you can't conceive?!! I hear lemon make you acidic and kill the sperm but also here it's acidic but has alkaline effect on your body. Ha!!!!!!but mint I don't really know why but I read that too ,help me I take large amount of them this month because I've cold and really plam myself