I feel awful and heartbroken...

We just hit three years ttc with no luck, pain after pain every month, tried everything, well my period was 2 days late yesterday so I took a test...negative again...heartbreaking right....not even 10 mins later my partners mother rings him too tell him his little sister is pregnant...she hasn’t been with her partner 2 mins and has tried too kill herself 4 times in 12 month.....it felt like a massive kick in the teeth and my heart is breaking....but I feel so awful for thinking this way.....aw and my period showed today too make everything else a bit better 💔