Am I going into labour?

I'm 37w3d and I've been feeling weird for the past 3-4 hours. My legs and back hurt, although I haven't been walking much. I have random sharp pains in my vagina. I have some weird cramps which I don't know if they're contractions or just the baby hitting my bladder and my ovaries. I'm not sure how contractions should feel.

Do you think i might be going into labour? Or are these just normal last month symptoms?

PS: I really don't want to go into labour yet, because my fiance is travelling with work for another week 😢