Feeling a bit guilty

On monday I start work. I am very happy since it is a great opportunity and an interesting challenge for my career. However I have had very mixed feelings since I accepted the role. Kids will go back to full time daycare and it males me feel guilty. Here in the US it is very common mom to leave their career on hold while raising their children (in Brazil, this is not always financially possible). We have also spend some much time together in the last year and specially since we moved to the US! I will miss spending so much time with them! But I am also aware I will be 100% present on our time together once I start working. Both kids will be at the same daycare until Kaio starts kindergarten in august. I am sure they will have lots of fun and be happy as it is a great daycare, it's just this mom's guilt (i would also feel very guilty if I would not have a career!) Since this is our 'last' week together, we had a full fun active week! We went to the zoo, the pool, museum, circus, library, indoor jumping arena, playdatea and ate tons of junk food, ice creams and sweets!