Is the ingredients mention below suitable for pregnant woman 1) collagen peptide 2) perilla seed extract 3) silk protein 4) soy isolfavone?

Forget this stuff.: Take your prenatal vitamins, folic acid, calcium and Vit. D and nothing else. All of those products are poorly studied and there is very little responsible, independent testing to determine if they actually work or if they may have side effects, or harm fetuses. Also the companies have different ways of making up these pills. Save your money and spend it on plenty of fruits and veggies instead.