I’m unexpectedly pregnant with my first baby at age 42

Hello- just found out my husband and I are expecting our first baby. I’m 42 years old and 6 weeks along. Lots of emotions. Over the moon excited but scared to death. Any tips? I have been having extreme morning sickness sometimes 24/7. Extremely tired. Not sure what advice I’m looking for. Anything would be appreciated 😭 I was told we would never get pregnant naturally so this was completely unexpected and I’m so scared of losing the baby. I have an ultrasound at the end of this month. Taking prenatals, and B-6/sometimes with unisom for morning sickness. I’m rambling so I’ll stop here. Thank you 🙇🏻‍♀️