Haven’t had sex since birth of our daughter

Me and my husband have been together for over 9 years, when we were trying for a baby we were having sex all the time and luckily we conceived before it became too “routine”. Before this we would have sex at least every 2/3 weeks but since being pregnant from about 7 months we have not had sex once, I am now 8 months PP. This is our first child and I have been EBF until 6 months when we have introduced some food, parenting has hit me like a ton of bricks and I am exhausted most evenings I am falling asleep on the sofa when our baby finally goes to sleep. I feel like we are stuck in a rut romantically and I feel I am internally building some resentment because I feel like I am doing more on the parenting side of things (he is going out a lot more than me to see friends, family etc and I am at home looking after the baby) and being tired and lacking confidence in my new mum bod I don’t feel to jump on him and initiate sex. I am also feeling a bit inadequate financially because I’m so skint on maternity leave money, he is the one working and reminds me that he’s the provider and has different stresses such as being able to pay all the bills etc. I just feel like we are on different wavelengths I don’t really know what I can do to spark some sort of romance and understanding back into the relationship but am a bit worried it’s been going on so long now, is anyone else having a similar experience or have any ideas what I can do to try and revive my marriage?