Assalaam aleykom
Congratulations sister, inshaAllah the best future for you together and lots of babies
about being nervous...its ok, dont be nervous of being nervous..and if you awkward things becuz of that, let him know..better he knows that u r nervous than he thinks u r "weird"..
if you spill hot coffee on his shirt...tell him u r nervous
if you dont remember something he told u to do..tell him u r nervous
if you meet his family and u r too shy to talk and be ur social...tell them, dont let them think u dont like them..
just be ok with urself being nervous and I think he understands that..
cheers