The air embolism may cause different symptoms and the symptoms also depends on the location of embolism.
It ma take a few hrs or a day or two and the symptoms occur when the air reaches the organs causing damage and symptoms.
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The chances of air embolism during sexual intercourse are le4ss though it may occur in some cases when air is blown into due to oral sexual contact or during sexual intercouse while the women is pregnant.
air embolism and pregnancy
The chances of air embolism as in such cases after sexual intercourse are very rare.You are having unnecessary anxiety and you should not worry.
Since you have already taken the ativan drug so you should not worry.