I would say pretty safe. Bubs is nicely coccooned (sp?) inside and unless you had bleeding and cramps afterwards then I would just rest and take it easy for a few days JIC. My cat (2 kilos max) jumps on my stomach and the pain is a lot worse than when she used to do it pre-preg. I think it just comes down to the fact that our muscles and ligaments have slackened and every little twinge is felt more strongly. Keep an eye on your self and if still worried then see your doctor. I would not worry about it too much because like I said bubs is pretty cosy and safe in there.