Chihuahuas

Question
My female is almost 3 years and is currently
in her 5th heat. The past 3 times she has
been in season she will cry when my male
Tries to lock with her and run off. My male is
3/4 of a pound smaller than her and 6
months older. Any reason why or she just
spoiled?

Answer
you should take her for a checkup at vet to have her checked out just to make sure. if that goes well then you might have to hold her while they mate and hold them both still when they are locked. this will make sure neither one of them gets hurt in the process.  the fact that the male isnt bigger is really good and will help out in the whelping process. i really hope this helps and feel free to ask any other questions.