Hi Debbie G,
Re: genetic risk of breast cancer.
You sound concerned about not being able to take HRT because of a family history of breast cancer. It is worth bearing in mind that in UK a woman's lifetime risk of getting breast cancer is 1 in 8, so, sadly it is relatively common and fewer than 10% of cases are due to genetic factors. Many breast cancer cases that are currently put down to genetic factors are 'triple negative' i.e. not oestrogen, progesterone or HER2 positive, therefore HRT would not necessarily be contra-indicated in such cases.
I have a strong family history of various cancers and, in my experience, GPs do not know much about genetics. After all, they are 'general' practitioners and can't be expected to know everything. However GPs are, in some cases, able to refer to patients to genetics specialists (this is a process I have been through).
So, if you feel strongly enough, you could ask your GP for a genetics referral but bear in mind that the criteria for referral are currently quite 'strict' depending on the number of relatives who have had the relevant cancer(s) and the ages at which they were diagnosed. Relatives on both the maternal and paternal sides of the family are relevant even with cancers (such as breast) which predominantly affect one gender. Occurrences of cancer amongst both parents, siblings, cousins, aunts, uncles, offspring, nieces and nephews may also be relevant.
Also, bear in mind if you do go through with the process, you may find out things you'd rather not know.
Best wishes.