You need her for 2 hrs a day for what?
making food vs a takeaway- sounds like she tried her best. At least she fed you - it should be you going round to hers with some ready made food!
She’s probably feeling pretty tired and going out will be the least appealing thing for her. Give her a break and find someone else to help you, or DIY.
You say this week has been tough for you? I’m sure it’s been tougher for her. Have a bit of patience for her. I’m sure she’ll be doing what she can when she’s able. Do you really need so much of her time right now? It feels you’re a bit jealous of the time she is consuming into the baby - that baby is your niece or nephew - get to know them and enjoy these early days!