My kids are cock blockers (lol)

Just ranting but I'm so irritated so in May  me and my husband had sex once it's June we haven't had that much sexy time I understand with him working 6 days and with 5 kids( one that sleeps with us )  a dog a cat life gets in the way so I don't get down because of it but when I can get a chance to get ravished I go go for it so yesterday everyone was in the living room my husband was in our room changing  so I snuck out of the living room came in our room locked the door and started to get busy it was getting good and my daughter who is 15 who should know better tries to open the door is mad it's locked and is asking us why the door is locked wants U.S. open it she wants to come in ect so no need to say the moment was ruined I opened the door very mad and asked her what did she want she wanted to show me a swimsuit she wanted oh my gosh seriously this isn't an occasional thing this happens all the time they never knock do they think we don't need privacy don't they know we have sex and want to be alone smh I don't what to do there 15 14 7 6 and 2 I don't want to have the discussion that if they see the door closed its because we're getting busy but I need alone time