Feeling discouraged

So both of my pregnancies have been hard, with my first I had cholestasis and delivered at 29 weeks and spent the next almost 3 months sitting by my son in the NICU. He’s a happy healthy toddler now and I’m pregnant with his little brother. I have high blood pressure that I’m on medication for and gestational diabetes. I thought I was managing my gestational diabetes but even after eating the same foods that gave me a great number the day before I’m getting high numbers today. Plus my hip pain is getting so bad I’m having trouble walking and taking care of my toddler. I’m so happy that I’ve made it to almost 31 weeks with this pregnancy but I’m ready to be done. I feel like even when I’m trying to do everything right I still end up doing something wrong. I’m at a higher risk for a c-section and I’m pretty sure if I get one I’m going to ask for my tubes to be tied. My husband really wants one more because he desperately wants a little girl. I would love a daughter but there is no guarantee we would have a girl and I just don’t want to go through another emotionally and physically painful pregnancy. My husband tells me he will support any decision I make about my body and that he’s perfectly happy with two little boys, but he’s been talking about having a little girl since we got married and I’m scared to take that chance away from him.