Our kittens were 16 weeks old on Tuesday. On Monday we took them to the vets for their pre neutering check. The nurse said we're fine to wait up to maybe 6 weeks, they were showing no signs of 'maturing' yet, but told us what to look out for. We want to get it over and done with so booked them in for the 31st.
Last night and again this morning I noticed the male mounting the female when they were playing. Now the female is walking around with her bum stuck up in the air, and really 'presents' herself when I stroke her. Also the whole genital area looks different- swollen maybe. She hasn't been calling at all though, shes generally pretty quiet in comparison to the male and that hasn't changed at all. She's always been very affectionate and we haven't noticed an increase in that. Do I need to worry? Should I get the appointment moved forward? I know it's unlikely (but not impossible!) he's able to reproduce yet, but I don't want her to have to go through being in heat!