Passion is gone, is it time to say good bye?

I’ve been with my husband for 8 years and married for 2. I love him so much and don’t think I want a life with anyone else, but the sex and passion is gone, I’m not sure when it left but it’s been years. We started trying for a baby over a year ago and now sex just isn’t fun anymore and we hardly have any, some times it feels like I’m begging for sex.....