I'm 29 weeks pregnant. And I was planning to go visit my family on the 12th. which will make me 30…

I'm 29 weeks pregnant. And I was planning to go visit my family on the 12th. which will make me 30 weeks, I will be taking a train with my boyfriend.. but now my mom wants me to go in march, and I'll be around 8 months, depending when they want me to go, somewhere close to 9 months. will it be safe for me to go? I will only be staying there for the weekend.