Is it only me who feels this way?

Ok, so I'm 10 weeks pregnant, though for the past few weeks since I found out that I've been pregnant, I've been thinking about how I'll be able to sit on public transportation more often when my belly shows more than it is now, honestly, j can't help but feel slightly bad that I feel that way since I'm a person that would offer my seat to someone if they ask to sit or need to sit down, idk, it's also my first pregnancy so there's that... How do you try to cope with that feeling of guilt if you have it?