C.D.
WOW! What a wonderful year for your family!
OK, here is a suggestion. For the baby showers...if they do not have a shower before the baby is born (i.e. if their friends do not throw them one) then you can plan a "sip and see". That is so your friends and the Mom's friends can come over to meet the baby. You usually do a punch and some sweets...very simple. BUT I would only do this if there was not a baby shower.
For the wedding...the bridal party should be putting a shower together. Usually the family is not part of that (or at least the Mother's).
Good luck to you!!