Katheryn,
My issues wasn't between my 1st and 2nd, it was between my 2nd and 3rd. You see my oldest lives with my in-laws... I was 17 when I had her and we really weren't ready to raise a child - although we love her dearly, she is happy where she is, so we respect her wishes and don't force her to move in with us now that we are more stable and can provide for her.
Anyways... after being married for 10 years and we bought a house. The day after we signed the papers on the house we found out I was expecting... I had been told for years by different doctors that I couldn't have anymore - so we were so excited. Even my oldest (then 10) was excited. We had another little girl about 7 1/2 months later in early March '04.
When my little girl was 8 months old, I started having really bad pains in my abdomen - my doctor thought I had ulcers and put me on meds. My hubby actually told me he thought I was expecting again because of my moodswings. I didn't think it was true so I just let it go. But I did start seeing other signs and took a test at 2 in the morning about a month later. I cried when I found out I was expecting my 3rd... I didn't think it was fair my little girl would only get a little over a year when the older one had 10 years, I didn't think my hubby would be happy. When I went up to bed my hubby woke up to me crying and laughted at me because I was so emotional, but he held me till I fell alseep letting me know we would be fine and that Darbee would have her own little playmat for life.
My baby boy (Bubby) was born in early June '05. They are friends most of the time, but just like everyone - they do get into it from time to time,but make up and are playing again within minutes. Darbee did get jealous from time to time when I was nursing Bubby, but I made time for just mommy and Darbee time and we got her a baby to take care of like mommy was doing with my new baby. We also tried to get her invalve with him from the time he was brough home, even if it was just playing with him for a little while or handing me a washcloth at bath time. They adjust very fast at this age, my 10/11 yr old had more issues with jealousy then my 15 mo old did.
I did go through all the feelings you are having, and I am going through them right now too. I'm expecting another little boy in the middle of June. You see my Bubby is still my little cuddle bug, and I really don't want anything to change that... so the fears are still there even on #3 and #4. But what you believe is very true... all things do happen for a reason and when they are ment to. It will all work out! And I'm sure both your little girl and hubby will be happy when you tell them.
Congrats... it is fun seeing them learn together and play together when they are close. In my eyes them being close is a blessing... it just took me a little while to see it. Hope you are able to see it too!