TTC on a Friends Vacation

My husband and I are going on a vacation with friends next week and of course my ovulation is falling right in the middle of the trip, and we’re sharing a room. Our friends know we’re TTC and having some difficulty. Is it rude to ask for some “alone time” together? Should I just write off this month as a loss or ask our friends to give us some time alone?

For context there are no more rooms available in the hotel or we’d just get our own room.