Bitter sweet ?

So I’ve been applying to new jobs for a while now because I’m just not happy at my current job. Well I got an interview two weeks ago and they offered me the job today. They asked me to start in two weeks. I’m happy I’m I’ll be so close to home (less than a mile) and can go see the kids on my lunch break. However, this means I have to return to work 3 weeks earlier than I planned to... I planned on talking my full 12 weeks medical leave :-(. We need time to accept this job because it also pays more and will save so much in gas. But I’m so sad that 3 weeks is being cut short worth my kids. I’m in tears right now because I’ve enjoyed spending time with them so much and I’m beside myself. I really loved taking my daughter to preschool and picking her up. It made me so happy she was so happy to see me. I know i have to get back to work some time. But three weeks early is just making me so sad :-(.