Looking For A Part Time Mommy Helper

Hi. Im a stay at home mom to 3 kiddos ages 8, 5 and 2 (almost 3) and I'm expecting baby 4 any time. My 8 and 5-year-old are in elementary school but my younger dude is home with me. I am looking for a mommy helper to come over and help watch my son while I am taking care of the new baby and recovering from birth. I would occasionally need to leave both baby and younger child with the helper while I run errands or have things like meetings at the elementary school. I have been really struggling the end of this pregnancy and just need an extra hand to help me pick up, play with my toddler and just to make sure that I don't collapse from the exhaustion of trying to do it all. I would like someone who is experienced with littles and is CPR certified. I apologize but speaking English is a must as we are not bilingual.