try to avoid, at least minimise. The following links for your reference:
https://americanpregnancy.org/healthy-pregnancy/pregnancy-health-wellness/caffeine-intake-during-pregnancy-946/
https://www.pregnancybirthbaby.org.au/caffeine-during-pregnancy#:~:text=Consuming%20large%20amounts%20of%20caffeine,including%20coffee%2C%20tea%20and%20cola.