Wheelchair help?

Hi everyone, I'm 15 and 5 days along with my second. For the last 2 weeks my feet have swollen like crazy! Its horribly painful, and I'm having to wear flip flops even in the cold weather! Even in my flip flops they swell until I literally have callouses on the swollen part(its just fluid pocket with a callous on it 😳) I want to take my son out to the zoo or to the childrens museum. But i dont think my feet, hips (SPD from 1st pregnancy) or back could handle it. Grocery shopping is enough to send me off my feet for the rest of the day.. I'm debating a wheelchair, but I would feel so silly using one! I feel like that would be so dramatic and make me feel so helpless, but I want to be able to do things, I dont know what to do 😕😕