My ex is using my pregnancy against me

cat • mama to 3 earthside, 2 angel babies. Pregnant with rainbow twins due April ‘25. 💜

I share three kids with my ex, 8 & 5 (twins). I’ve been in a new relationship for 2.5 years and we are now married and expecting. My ex is taking me back to court and now trying to use my pregnancy against me saying it’ll affect the kids and a reason why he needs majority. Already have lawyer but the stress of the courts while being pregnant seriously sucks