Crying for no reason

Please bare with me because I’m not sure if this is going to make much sense.

I’m 2 days post op for an ectopic pregnancy. I was 10 weeks but have known since 6 weeks that the pregnancy wasn’t viable. I have made my peace with it and have 2 beautiful daughters already.

However today I’ve found myself crying for absolutely no reason. I’m not really upset over what’s happened, I mean obviously I wish things had turned out differently...this is the bit I find hard to explain, I mean I’m not crying because of that.

Do you think it’s just the change in hormones?