Seriously hon, I'd rest when you can and just ride it out. Don't give yourself a time frame because everyone recovers differently. Your weight, height, diet, metabolism, emotional wellbeing, general fitness, type of surgery, type of medications received during the op and after, how much sleep you get, other medical conditions and so forth all impact on how quickly you recover and HOW you recover. There are no hard and fast rules but I can assure you that what you were given intraoperatively will have been metabolised by now. Unfortunately some medications have a "hang over" effect and can leave you feeling lousy for a few days - but the drug itself is out of your system.
Things that will help speed up your recovery are eating well, drinking plenty of fluids, and getting plenty of rest (difficult with children!).
How long do you need the clexane for? DH's stomach ended up looking like a bruised pin cushion but he was on it twice daily for a month. I hope it isn't too bad for you
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