what to know if we compatible me and me other half we have been dating for a while now 18months

Is that one of you were born in 1972? If so, you two are a rabbit and a rat. Actually, you are well matched and get along well with each other. But your relationship is not so stable, you can do something to make it smooth, maybe a mature marriage, having a baby. Anyway, you two will find more happiness in marriage.