So annoyed but trying to brush it off!!

So I have been with my husband for almost 7 years(broke up maybe 2x in between but we always came back to each other)We finally got married this year on April 22nd. I am 29 and he is 31. He has a twin brother. Now with that being said his twin has a 22 year old girlfriend that I just can not stand!!! Trust me I have legit reasons for this. They have a 2 year old. She rubs it in my face every chance she gets that THEY have a baby. First off let me just say in 7 years I didn't have to get pregnant to KEEP MY MAN!! Bitch sorry but... YOU DID!!! The only reason he's with her is because she uses the "I'll keep the baby from you " tactics so he won't leave. I have wanted a baby for years but decided I wanted to do what was right and he married first, and I did. We have been trying to get pregnant for 4 months now and still no luck. Come to find out this weekend they are apparently trying to get pregnant again!! I have been saying for months that when we start to try she would be knocked up again just for spite! Having babies is NOT a competition. She can't stand the thought of us being parents and her not havin one up on us. Let me also just say that all they do is fight and scream at each other every.single.day! The baby starts crying when Ppl even raise their voices... traumatized. He doesn't want her, he just loves that baby. He is too stupid to wrap it... she got knocked up on purpose the first time... do u think he learned? Nope! Let me also mention that at my rehearsal for my wedding she had the nerve to comment "what a shit show" it was going to be! I got married at a venue she claims she was getting married at... oh and yea they arent even engaged btw. She's a jealous hateful bitch that I'm just over. Sorry for the rant but I just needed to vent!!! ✌🏼