I have anxiety attacks before pregnancy and currently in my third trimester. Agree with above. You should seek help early and make appts first. Meanwhile, you can try doing meditations (search videos from netflix and YouTube) and mindfulness/grounding techniques regularly. Try not let stress build up and focus on your mental health. Rest well and eat well when you can. Take it one step at a time. Recently I like making myself a cup of chamomile tea before bed, just smelling the hot tea makes me feel a lil better alrd. It's not easy, but believe in yourself.
See your psychiatrist and tell him/her you're pregnant and experiencing what might be panic attacks. Dr will consider safe options for meds. Recommend to speak to maternal mental health trained therapists too. Let your gynae know as well as your next visit. Some panic symptoms might be confusing during pregnancy because they are quite similar to some preg symptoms.