Flu Shot and preemie?

So my preemie is coming home soon and I'm in a bit of a conflict with myself. The nurses are suggesting I get a flu shot especially since he's been on oxygen for so long. I want to because it'll help keep the flu out of the house. But I've never gotten one and I'm worried about having a reaction to it. My husband got the shot a few years before we met and was hospitalized. So he's refusing to get one. I haven't gotten the flu since I was like 7 or 8. So I really don't feel like I should. But, I feel like as a mother I need to do it.

Have I been mom shamed so bad I ask strangers for advice on small things like this? I feel like I'd be a bad mon if I didn't. But I'm really not comfortable with it.