Maternity leave???

Hello all! My fiancé and I are currently TTC #1. I am currently a nanny but will be leaving the family at the end of December. I will be looking/starting a new job afterwards that won't be in the nannying/babysitting field but probably either factory or retail or basically anything I can find haha. If my fiancé and I do conceive this go around and then I start a new job would I be able to get paid maternity leave? I find the whole thing confusing. Thank you!