Hi! I did exactly the same as play and learn!!! My mom is retired and loves to come play with the kids so they all knew her already once I started to have frequent appointments while pregnant. I was very lucky with both my girls as they were easy pregnancies.....I worked right until the bitter end, haha! It is so important that you have a firm plan set to tell your parents so they are confident that you are still willing and able to provide great care for their children. If you do not have any body you can count on you could try putting an ad on Kijiji for a supply teacher. I'm not sure where you live but in my region, public school teachers have a hard time finding jobs with the school board and might be available to help you!