This. ^
@Pregnancyquestion
Sadly, some people will not take the relationship between a same sex couple, as seriously as one with a hetero couple. I have seen this a few times in real life. From extended family members, to neighbours to work colleagues, and employers.
If it makes you feel any better, these same people don't take a couple's relationship very seriously if they're not married. (Even hetero couples.) I have known cases (eg) of a couple being married for 5 years (together 8,) and the husband has died. The widow has been given a week's compassionate leave from work, and had a collection (of money) done for her, had flowers sent to her, and flowers sent to the funeral, and lots of sympathy and understanding.
Then in a couple who had been together 20 years/living together for 18, but never married, the woman's partner died, and the woman who was left bereft, didn't get a single minute of compassionate leave, or any flowers, or even a card. Very little sympathy - if any at all. Because they weren't married.
Some people don't recognise same sex relationships as much as they do hetero ones. Also, I know 4 same sex female couples right now, who met their current partner, and moved in with them within a few weeks. And they always do this. Then they split within a year. So when they do get a new partner (and move in together quickly,) many people don't take them seriously. I know a few same sex male couples who behave in a similar manner. (Get serious very quickly, move in together quite quickly, and then it fizzles out quickly.)
nb: obviously not all same sex couples do this, but some I know do - and have.
@Pregnancyquestion there's almost 100% chance that your wife's family are doing this deliberately... If you'd said you'd been married for a year or two, I would say, that maybe it's accidental, but after 9 years of marriage? No way.