Shrinking Fibroids

Found out back in Feb after a MC that I had fibroids. Pregnant again now and am 14 weeks. Went in for NT scan and they looked at and measured my (4) fibroids. 3 of them are 2 and 3 cm... Not cause for concern, however the 4th one is on the opposite side of my cervix... Right now it’s not an issue but if it grows, could cause an indentation in my cervix making vaginal birth difficult... Anyone have any natural tips on how to potentially help them shrink? I’ve read about some herbs but am concerned with certain ones being that they cause uterine contractions... Definitely don’t want that.