Best thing to do is ask your doctor for samples. They have plenty to give away. I survived off samples & never had to purchase vitamins during or after pregnancy. Plus, there's different types of vitamins some with dha, some that don't. I prefer dha. Then there's vitamins that contain stool softeners or nausea pills. I was nasuated in my firstttrimester, so the ones with nausea pills helped a lot.