Sex during 3rd trimester

Ok I need some tips. My bf and I are expecting in January and sex is just getting so hard but I don’t want to stop. I love the way it makes feel. Anyway. Missionary hurts my side for some reason. Doggy I can’t do very long because he’s huge n it hurts. He’s to tall for us to both lay on our side. We tried “laying” on my stomach. We used a ton of pillows lol it was so good but it made my sides, lower stomach hurt. Is there any other positions you guys do? 😭