4th Baby!

This is my 4th baby and I am so nervous! This is actually my 7th pregnancy and have had miscarriages in the past so I'm anxious to know that everything is ok with this baby as well as could it possibly be twins?! Our family is large already (we have 5 children combined) so it's not like I'm not used to a lot of children, more so another baby! Our children are 11, 9, 8, 7, and 4. Any other mothers out there that have a large family or pregnant with their 4th child?! Love to hear from you all!