Is it time we walk away?

We have been together for 14 years. The last 4 years minimum but in all honestly alot longer we have drifted apart. We dont kiss cuddle let alone.have sex we had sex when we was trying for a baby and that was it. We are like friends living together. I dont feel attracted to him alot of the time i dont often feel happy . I also dont feel attractive and hate how i look. Same routine day in and out - if its been the same for so long. I understand peope will say it will work if u want it to how only we can.but.i dont know.if its to late.or how to even go about it. We have had this conversation many times and say we dont want an unhappy home but i worry about our child coming from a broken home but also what it could do if we drag this out