I turned 31 in November and always said I was done after 30 with having kids...I also said I didn't…

I turned 31 in November and always said I was done after 30 with having kids...I also said I didn't want anymore because I have 3 girls now and I'd most likely have another girl and a boy would be nice! lol. Well my baby love is turning 2.5 months this week and I am considering 1 more little bundle of joy...I feel kind of crazy saying that anyone else just have a baby recently and thinking about another one already?