Prenatal

So I know prenatals are important, but the pills my OB prescribed me make me puke them right back up, even with the nausea medication. So, I’ve been taking flinstone complete gummies. They have folic acid and I know that’s important at this stage (I’m a little over 10 weeks). But my MIL is driving me crazy saying I need to take prenatals I’m prescribed, but I feel as if it’s not helping any because I’m literally throwing them right back up. So, are the flinstone gummies a good substitute? Thank you.