To not want DH to travel?

[M2R2]

I am 34 weeks pregnant. DH uncle is very sick, cancer terminal stage. He grew up with his cousins in the same house. He is planning to go and see him in couple of weeks. He will be away for a week or 2.
I feel that he shouldn't be leaving us while am at this stage, i have a 19month old dd and no family around.
I didn't tell him that I don't want him to go. But i feel that i will be heartbroken if he did.
Am I being unreasonable????

Thank you everyone, yes English is not my first language, probably heartbroken is a bit excessive. I am being too sensitive not having support is not easy. I am panicking as it is waiting for my mum's visa ( i am not having high hopes).
Unfortunately extra childcare is not an option for me. I am ok looking after my dds, my worries is that I panic. In my last pregnancy i had really bad Pain last 2 weeks before birth, baby wasn't moving much was crying myself to sleep every night. The thought of this happening while on my own is not easy.
I will try to talk to him today about going sooner.

Just to add i don't normally turn into a little baby when i am sick or in a bit of pain. Its quite the opposite I rarely missed work for illness and always been there for dds no matter how pain i am in.
Its only pregnancy and labour I can't handle as both experience was horrible.