She just turned 5 months on sunday. I was told all my life it was 6 months they need to have it done but I have seen mixed reviews all over on here. I'm hoping somebody with experience can give me some advice. Should I have it done next month or wait? Also when do they usually go into their first heat cycle? Honestly, I would prefer to NOT have her go in heat but if it is whats best for her then I cant complain.