Although this is never going to directly affect me
I think this is one of those 'it really is up to you' ones.
There is a definite specialist demand for pregnant escorts. 'Pamfan' is the code word from memory. But if you continue working, there's a vociferous group that will scream 'How could you?!?' at you. Like so much else, some people can be happy doing it and others would find it unacceptable.
How soon you'll be able to resume working after giving birth is something that you won't know until it happens. You may want to consider which services you'll offer.
Soooo much of having a child is luck and you've no idea whether you'll have a happy healthy baby or if you'll spend most of the first few months sitting by their cot in intensive care wondering if they'll survive. Good luck.
The other 'pregnancy not sex work' advice is to look at a copy of the Contented Little Baby Book and do the opposite of almost everything she says...