Feeling left out after my sister-in-laws got pregnant before me

Sorry for the long post... 🙂

We have been TTC more than 5 years and still trying. While on this journey, a lot of things happen both positive and negative. The reason I'm writing this is to see if there are other poeple who are also strugling from the same situation I am right now and maybe you can help me overcome from entering negative thoughts.

My husband has 3 female siblings (so they are 4 in total including him). My husband and I got married first, followed by his 2 older sisters after a couple of years. We are keen to have a baby of our own while his 2 married sisters didn't want to, they told us that they'd want a dog instead. Long story short, everything turned upside down, both of my husband's sisters got pregnant while my husband and I got a puppy (crazy, right?). BTW, the eldest sister already bore a child.

Every month we normally visit my husband's parents. It's really a pain to join the gathering when I know I will be facing my 2 sister-in-laws; one is pregnant and the other one already has a child. I am not against them having a baby but I see my situation as being left alone and I can't do anything but to watch and wait for my turn.

There are still a lot things happening here while in TTC but I don't want to make this post super long so I only included the main points

Now, when I am alone at home, I tend to think about a lot of negative thoughts. Sometime ot just keeps entering my mind unintentionally. It's really painful and it's giving me a lot of stress.

Is anyone here being in the same situation I am right now? I'd like to hear your thoughts.

Thank you.