Is this a normal feeling?

I had placenta Previa at 17 weeks with blood and cramping. Went on bed rest. I started trying to be more active because my placenta moved a bit and I was getting weak. I noticed a lot of improvements, but now I'm in pain again. My gut says that it's from not getting enough exercise... I do walk every day, even though it's painful. Do some people just have more painful pregnancies? I'm a FTM at 24 weeks btw. And I'm 5'1 and petite if that has anything to do with it. What Hurts the most is my vagina when I'm walking. It's awful.