Has anyone had this experience.

So i haven’t had much of a break from pregnancy if that helps this, my oldest was born in 2019 and i had twins 8 months ago on 9/11/20

I’m 15 weeks and I’ve been feeling movement since 10 weeks but now it’s just strong kicking which has shocked me..

But what really got me was twice now I’ve felt it on the outside when having my hand lying on my lower belly, i know what baby kicks feel like so i know 100% it’s baby , i definitely didnt think it would happen THIS early however.

My fundal height is that of a 18-20 week pregnancy too right at my belly button i know the dates are right though.

With all my other kids i could see them on the outside by 17-18 weeks so i thought this was pretty early ?

I know all my muscles etc are still stretched out from having just had twins. But wanted to know if anyone else have experienced such ?