As I understand your situation, you aren't a woman for the purposes of the Equality Act of 2010, which governs who should be in single sex spaces or be eligible for single sex services.
Under the Equality Act 2010, sex is determined by biology at birth, not by later transitions. As such, for the purposes of single-sex spaces and services in the UK, you are not legally recognised as a woman.
2.88 The Supreme Court in For Women Scotland ruled that ‘sex’, ‘woman’ and ‘man’ in the Act mean biological sex, biological woman and biological man. The judgment uses the expression ‘biological sex’ to describe the sex of a person at birth. Earlier case law [fn 12] has set out the indicators of biological sex.
The indicators in footnote 12 above are
The indicia of human sex or gender (for present purposes the two terms are interchangeable) can be listed, in no particular order, as follows. (1) Chromosomes: XY pattern in males, XX in females. (2) Gonads: testes in males, ovaries in females. (3) Internal sex organs other than the gonads: for instance, sperm ducts in males, uterus in females. (4) External genitalia. (5) Hormonal patterns and secondary sexual characteristics, such as facial hair and body shape: no one suggests these criteria should be a primary factor in assigning sex. (6) Style of upbringing and living. (7) Self-perception
This passage from Bellinger v Bellinger seems applicable
The essence of the problem, as I see it, lies in the impossibility of changing completely the sex which individuals acquire when they are born. A great deal can be done to remove the physical features of the sex from which the transsexual wishes to escape and to reproduce those of the sex which he or she wishes to acquire. The body can be altered to produce all the characteristics that the individual needs to feel comfortable, and there are no steps that cannot be taken to adopt a way of life that will enable him or her to enter into a satisfactory and loving heterosexual relationship. But medical science is unable, in its present state, to complete the process. It cannot turn a man into a woman or turn a woman into a man. That is not what the treatment seeks to do after all, although it is described as gender reassignment surgery. It is not just that the chromosomes that are present at birth are incapable of being changed. The surgery, however extensive and elaborate, cannot supply all the equipment that would be needed for the patient to play the part which the sex to which he or she wishes to belong normally plays in having children. At best, what is provided is no more than an imitation of the more obvious parts of that equipment. Although it is often described as a sex change, the process is inevitably incomplete. A complete change of sex is, strictly speaking, unachievable. -LORD HOPE OF CRAIGHEAD in Bellinger (FC) (Appellant) v. Bellinger
https://publications.parliament.uk/pa/ld200203/ldjudgmt/jd030410/bellin-2.htm
Factors 1-4 are present at birth. Hormonal levels are too but only those present at birth should be relevant, not current hormonal levels or those present during puberty since those were clearly not present at birth. Secondary sex characteristics are developed after birth and typically begin to appear during puberty so those shouldn't be considered for determining sex under the Equality Act. Factors 6 and 7 develop after birth.
polypostwonder, which of factors 1-4 suggest you're a woman and not a man?