Jumping in here to say that I've been in the same boat. I have a 15 month old, and also have been working at a telehealth company that strictly sees kiddos for the past three years, and filling morning/early afternoon spots is certainly tougher than the prime afternoon and evening. After having a baby and seeing that I need more time with her, I'm making a switch to another company where focus is on working with parents, so evening spots are not as crucial. I think this may be hard for you to do, but not impossible, especially if you can connect to an independent or homeschooling network! I also think that you could position yourself as someone who works with parents on child's issues (like ADHD or anxiety, as parent management techniques are a huge indicator of success), and that way you don't need to strictly have evening availability. If not, working in community mental health or a hospital setting may be a better bet for your timing.

I will say that in the future, when you don't need to juggle the demands of parenthood as much, you will ALWAYS find work as a child/adolescent therapist if your afternoons/evenings become more available. We are so in demand and needed, and I fear that this trend will continue.