Pregnant in Finland Need Help (Helsinki)

Hello, I moved here in the middle of my pregnancy with my Finnish husband. I have already applied for a Kela card and the baby box, immigration papers turned in, been seeing nurses and doctors...etc! My problem is that I do not have hardly any friends and my pregnancy has made me very anxious. I am afraid to spread my wings and while I am normally adventurous, with this pregnancy I am afraid to go anywhere or do anything alone, which isn't healthy. Succinctly I am trying to find things like Prenatal yoga, or carpools to swimhalls...things of this nature to get me active and social. My husband works late shifts at a bar. Also specifically any of these things in the Kannelmaki area so that I am more likely to show up. Scared of public transport alone and much more.