No sex drive anymore?

So I’m not sure if you guys can answer this but I had my 2nd baby boy 3 almost 4 months ago now and I thought my sex drive would be back by now but it isn’t. With my first I was horny throughout the whole pregnancy and was the same way after I had him which led me to get pregnant again when my son was 6 months. But with my second boy I lost my sex drive during pregnancy so I thought hey once I have him I’ll be good again but it hasn’t came back I’m not sure if it’s something wrong with me or what but I need advice majorly!