My husband is HIV Pos but undetectable, would PrEP be advisable for myself?

It may. An undetectable viral load does not eliminate risk of transmission. It’s best for you to use barrier protection (condoms) at all times. PrEP can be used if you are still at high risk, and especially if you are trying to fall pregnant (although you should first explore other methods - eg in vitro). Please speak to your Family Doctor for individualized advice.