Need to vent! Im feeling overwhelmed

Meagan • Mommy of four 💜
I'm 26weeks with B/G twins and I have two daughters 10 and 3. I have been getting a babysitter to most of my Dr appointments. Mostly for every Specialist appointment. But this next one my babysitter (whom is 16) has to be at cheer before I would make it home so now I have to find someone else. But I have no one else. My Dad works second shift. My sister (whom I have a very rocky relationship with anyway) has never once offered to help with anything and never ask how the babies or I am doing. But she wanted my oldest daughter to spend the night. I said how about tomorrow because my drs appointment is Wednesday so that would help with the babysitter problem. All she said was her son has an hair appt that day. Never asked what time or anything. I've sent text asking two friends and haven't heard anything back from either. Its nice when I need help no one can help but when anyone needs anything I'm the first they call. So looks like I will have to take my girls with me 😒 they will be good but its easier to not take them. Sorry I needed to vent.