@sizzlewizzle You've told her you're not going to see her anytime soon. I mean, how long do you have to go? Another 8 months? 7? Then you'll have a newborn baby and you'll be even more risk-averse, so that's what, another 6 months at least? Maybe longer? And we don't know how long it will take to properly manage Covid. We don't have a vaccine yet. How long will it take you to feel comfortable about the risk she represents? She's not going to change her lifestyle for your baby.
So, in conclusion, you've told her you won't see her face to face for at least a year, maybe more. I don't disagree with you regarding managing your own Covid risk, I'm also quite aware of which of my friends are out and about and mixing with lots of people, and I'm relucant to see them too - but you have basically cut yourself out of her life. You're available for text messages and phone calls - that's not the same deal. Many people find responding to messages exhausting at the moment, and are tired of video calls. And when it comes to replying to things, time just gets away from you, given each day is blurring into one.
I don't think it's your pregnancy that has put distance between you, it's your differing approaches to Covid-19. Neither of you are necessarily in the wrong, and I get that you miss your friendship, but it is what it is. I would leave her alone for the moment (you don't say how many messages you've sent her, but you could possibly be stressing her out by continuing to send message after message) and leave her to respond on her own terms. Give her at least a month or so, before checking in with a short "I miss you - hope you're OK."
Oh, and congratulations - you're clearly very excited about becoming a mum, and I hope the rest of your pregnancy goes smoothly. :)