Helppp

So my husband and I are under 26 and still on our parents insurance. We both work full time but missed the open enrollment last year. I'm 14 weeks pregnant and we called to get insurance due to the pregnancy and they said that we do not qualify until the baby is born. I just got a bill from my hospital for an ultrasound that was not covered on my dad's insurance. We don't know what to do about getting coverage for my prenatal and birth care so we don't have to pay for all of those costs out of pocket. Any advice would be greatly appreciated 😫