this is far out there but my dog has been done with her heat cycle for a while now but i have noticed that her vulva is still enlarged (and her nipples are still pretty enlarged). another big thing ive noticed is that if i feel under her nipples i feel a bulge (under all of them) almost like there are little hard milk sacs forming. shes 7 months old now and she started her heat cycle just barely after 6 months. my sister did put her out with a male dog a week ago (when it was already a few weeks after her heat cycle was supposedly over) and she did say that he tried to mount her a few times but she wouldnt let him. she told me this now so im not sure if i should be worrying..