UK ladies - Flu Question

Gizmo 🏴󠁧󠁢󠁳󠁣󠁴󠁿

I'm 30wks pregnant and got my flu Jag from midwife around 16 or 18wks pregnant.

My husband and Son came down with an awful flu a few weeks ago and are still suffering.

I got it a bit milder, less fever but still the achy bones and feeling rubbish for days. Anyone else had this? Didn't think I could catch the flu since my vaccine and my son got the nasal spray so dunno if it's just a diff strain??