Sleep positions??

Kennedy • Married to my soulmate since 7.4.2020!💍💞 We have a 4 year old son, who took a year and a half to conceive! We are expecting baby girl March 11th 2021 after 2 1/2 years of ttc with fertility treatments 💖
Is it just me or is anyone having trouble getting comfortable sleeping unless its one certain position? I can ONLY sleep if I am on my stomach with my arms under my pillow. And I know I cant get used to sleeping on my stomach like that because the further along I get the more dangerous it is to sleep on your stomach. Just want to know if I am the only one.