Is this really my life?

I have been in a reflective mood lately. I think with all the hustle and bustle we've had over the past few months I haven't really had time to stop and breathe. Well, I've had that time now. I live in a comfortable house, with plenty of room for my family, we have plenty to eat every day, we don't have to question where our next paycheck is coming from, I have an awesome dog and a loving bird, I have a wonderful husband, a loving extended family who is willing to help me at a moments notice, and I have the most beautiful daughter. I am blessed to be able to stay home with her, my husband provides so well for our family.
Is this really my life? Some days I feel as if I am going to wake up and realize that it's actually just a day off from work and all this was a dream. I feel this way mainly when Delanah has gone to bed for the night or now, when she is napping. How did I get to be this lucky? There are so many people out there that would love to be in my shoes. I feel guilty when I feel down about my days, my life. I am so incredibly blessed.
This morning I took Delanah and Bailey for a nice, long walk. We came back and played, had a little snack and then a nap (I tried, but alas, was too late and started nodding off as she was waking up). I took Delanah swimming today in a very busy and loud indoor pool. I wasn't sure how she was going to react to it, but she loved it! She was a tad unsure of her new float toy and the splashing initially, but warmed to both and we had an awesome time! I love that I get to be the one to see her reaction to the water, the tentative splashes, the smiles, the look of wonder on her face as she was watching the other kids. I just can't imagine someone else sharing these moments with her. I am so, so, so, so glad that I get to be the one to do it!
In this new, reflective mood, I think I am beginning to understand why we have disagreements on the weekend. Dave likes to help out when he's home, and I really do appreciate it, but this is my job. During the week, this is my office, this is what I do. I just feel bad, like I'm not pulling my weight when he comes home on the weekend, or even at night, and starts doing things that I think fall into my job category. He works hard all week and brings home the money that provides us with everything we need, I am to take care of the domestic duties. Okay, I am still working on getting everything done during the day that I think needs to be done, but man does it make me feel guilty when he starts doing some of the things. I think we need to sit and talk about it...I'm sure we can work something out.