Need unbiased opinions please

Hi everyone! I just turned 40 this year and had my 5th and what I thought was last baby last April. Fast forward 15 months and I find myself accidentally pregnant at 40 with my 6th baby. Iam 100% torn on what to do. Iam high risk, I have been with all my babies has have an incompetent cervix and need a cervical cerclage at 12 weeks until 37 weeks. We have a 4 bedroom home and we are already completely cramped and have 0. Room left lol. We can not move anytime soon or build up so that is not an option. My husband is not thrilled and trying to tell me he’s nervous about my age and we have 5 healthy kids and shouldn’t push our luck and just count our blessings with our family now. And as for me Iam 100% split. I have my worries and concerns. I just got back into great shape, have energy and feel great. I want to give each kid adequate mommy time and I’m already stretched thin. I know how babies are made I take just as much blame for this as I blame my husband lol.

I guess I’m just looking for advice on what anyone else would do in my predicament! Thanks ladies