Fiance staying out late???

Bree

So, my fiance and I got a gym membership together about a year ago. I'm now 25 weeks pregnant so I don't go every day as simply working my 5 hour shifts at work are pretty exhausting. He has a 4 year old daughter from a previous relationship that we have 50/50 custody of so we agreed that during the week we have her he would go to the gym at 8pm (when she goes to bed) and I would stay home with her then we would go to the gym together on the weekends and week days we don't have her. Well, Monday and now today (tuesday) he hasnt been home on time. Yesterday he didn't get home until 9:45pm and its now after 10 tonight and he still isn't home. Our gym has a strict 1 hour limit due to covid right now that is enforced. It could just be pregnancy hormones thats making me worried but I dont have anyone to talk to about this. I just dont understand why he is staying out so late when he can only be at the gym until 9. We live only 5 minutes from our gym too and he doesn't shower there. When I asked him yesterday he was very vague and just said he stayed longer with a gym buddy but I know he can't, the gym is strict about the 1 hour workout limit and makes sure everyone is out before the next set of people come for their workout (we have to schedule workout slots and are limited to 1 slot a day). I'm pregnant and sitting at home alone with his daughter so he can go workout so I just find it a little disrespectful that he is doing this.