What do y’all think?

So I have an almost two year old now and my step kid is almost 10. I grew up with a sibling that was two years younger than me and I feel like it’s very important to have a sibling. I know that my kid has a sibling now but we only get to see her every other weekend and a couple hours during the week plus they are so far apart in age. I’ve always wanted to have two kids which I do now with those two but I feel like I should birth one more so my kid that’s with me all the time has a playmate and a sibling to grow up with. My dh is an only child but recently decided he wanted one more. With my mil only having one child i don’t think she would be too fond of us having another child totaling three for my dh, her son. And I know it’s our life but I feel like everyone is against me having another child and it definitely is not because I’m not a great mother because if there’s anything I’m good at, it’s being a mom to both of our children now. Idk should I worry about how everyone else feels or just do what makes me happy. And how will my current children feel? Just curious of y’all’s insight on the situation