Doggy position seems the best for me!

The bigger you get the harder and more painful it will be. You'll need to find the position that helps the most

I just recently started having sex again & its kind of painful. It feels good, but it's painful 😖 I just went through a forum & one person said that the cervix is very sensitive now due to increased blood supply & the weight of the baby. But, the good thing is that a lot of women go through this too