Am i being selfish?

Okay so let me start by saying my boyfriend has a two year old daughter who i absolutely adore we split weeks with her mom so this week we have her Tuesday-Thursday. I just got done working 6 days straight with bronchitis as well as an ear infection as well as being 16 weeks pregnant and I’m just exhausted i have the next two days off and he wants me to watch her both days and then i work another 6 days straight and he wants me to watch her on both of my days off AGAIN. Am i wrong for just wanting one day to just get myself together and catch up on some sleep? I’m not going to have that option when the baby comes 🤦🏼‍♀️

Update: well wish me luck I’m watching her today and having to take her to my monthly check in with my OB as well as ultrasound later ALL BY MYSELF. My boyfriends at work, i appreciate everyone telling me I’m in the right his explanation is he saves money on daycare when i can watch her, but I’m not gonna have that option once my daughters born and he also doesn’t work weekends right now so every other weekend he’s home by himself just relaxing. Why can’t i have that?