Have one DD aged 2. So many reasons we won’t have more:
Time- for ourselves as a couple, we can continue to put a lot of time into supporting each other and nurturing our relationship, to be honest our previously rock solid marriage has taken a hit since DD was born and I’m not sure having a second would allow us to put the work in that we need to. Also For for ourselves alone, we can continue with hobbies or simply have me time whilst the other parent cares for DD. For DD, we will have more time to give her to listen to her and ensure she is supported and her needs are met- I’m sure many parents manage to do this for two or more children but I think I do better one on one.
Money- less childcare costs , less food bills, easier for us to both work full time, less worry over money, can do more experiences with DD and hopefully support her more in adulthood with uni, deposits etc if she wants, can save more and put more in pension, have more holidays, have a cleaner and other things to enhance our lives. More IVF would be expensive.
Energy- have less drudgery (cleaning, washing, cooking etc find it hard enough with one) not having to devote more energy to IVF, more peaceful home, less chance of being burnt out and a lower mental load.
Health- less chance of birth injuries, PND, pelvic floor issues, breastfeeding related issues, pregnancy related weight gain, not having to go through morning sickness again, better peace of mind and less stressed, avoiding further IVF injections, procedures, medications and potential miscarriages. Can focus on treating my endometriosis now rather than putting that on the back burner to TTC. DH has mental health issues he currently usually copes well but which are aggravated the more stress we put in the mix. Worry over a potential second having health issues and impact of that on DD.
Age- just personally for me I don’t want to be older than I am now having a child and I don’t want one now, Should hopefully still be relatively young and healthy when DD reaches adulthood.
Environment.