Am I being hormonal and crazy?

So my boyfriends grandfather lives close to us, and he lost his wife early last year and has been finding things to do like renovate the upstairs of his house, buy cars to fix and snowblowers, anyways there is literally always something he is doing (just trying to fill the empty time he has I’m assuming, he’s a very kind man) but anyway I’m 34 weeks pregnant went into preterm labour twice already, and right now our daughter (5) and myself have this bad virus thing. I feel like shit, she on and off feels like shit and I’m just beat. Anyway he went to help his grandfather with a snowblower last night whatever, anyway he came home and said he’s going again today usually 5-5:30 until about 8 ish maybe a bit after. He is always with his grandfather helping him or seeing him or something. Like I said god love his grandfather, but I’m finding an issue about how my boyfriend has to go every single day to every second day to help him with something, or do something with him I just find it so overwhelming because there’s a lot to do at our house to get it ready for the baby cleaning wise, the kitchen and dining room still need deep cleaned and the basement needs a big time cleaning. I’m nesting so badly, and want to get into a routine and I’m finding it so hard when he needs to go with his grandfather all the time (and yes he is with his grandfather) I know it’s out of the kindness of my boyfriends heart, but it’s just getting so overwhelming for me, i feel like I’m dead chasing after a 5 year old doing a lot of stuff myself at home and not feeling good at all myself. Am I wrong? Do I need to back off and stop getting annoyed? I have no problem when someone says it’s me being hormonal I need to chill I’ll listen I’m just trying to figure out if he’s being unreasonable or if I am