Help! Low sex drive?

So my boyfriend and I have been together for a little over four years and we want to try for a baby. And we do. Just not as often as I feel we need to. I’ve been off my birth control for probably almost a year now I guess. My period comes when it wants to and my sex drive just doesn’t seem to be there anymore. I am deeply in love with my boyfriend so that’s not the issue. I am 24 he is 29. We are both ready to start our family bc our house is empty aside from our pets. Can anyone give me advice?