Hi, OP, in my opinion, it doesn’t sound as though they care about you. It could be a blessing in disguise that this is not a permanent job. My advice would be to apply to other positions, but after your baby is born. I don’t know how hiring managers would react to your pregnancy.
Years ago when I was pregnant with my first, my work colleagues (very small office) began treating me differently the bigger I got, and they were not nice. When I returned to work after maternity leave, it was hell. It was clear they were angry with me for having a baby, even though my work ethic hadn’t changed one bit and I never took time off because of my son.
Meanwhile, the loudest one of the lot, who claimed that I wouldn't be able to do the job since I was a mother, took two and a half hour lunches when the boss wasn't around, which was nearly every day. Another one took three days off because one of her fucking pets was sick, and would sometimes bring one of her dogs into the office, and no one said boo.
But I, apparently, was the problem. Mmmmkay.
I was so stressed that I wound up quitting a year after my son was born, and I found a job with people a little more family-friendly. Should have left sooner.
The folks you’re dealing with are showing their hand with their treatment of you so early on, and it’s telling that you used to love your job but don’t anymore. Hang on; it could get worse. But then, I may be biased, based on my experience.