Swaddles and rolls

So my lil one is 4 months almost 5. I still swaddle her cause my MIL still says I need to until about 6 months(she's a baby doc). But she can completely roll over on her belly now. But can't get out of being on her stomach while unswaddled. My partner is freaking out saying we shouldn't swaddle her(he has been against swaddling since before she was even born tho) but I do get worried now like he does. Do you guys think I should slowly transition her to free arms now even tho its still early? EDIT!!!! COMMENT IN THE POST