Maybe I should not have had a kid?

I was so happy until one day my partner told me we had our kids too soon. A couple of weeks or a month earlier i found a woman messaging him sending him provocative pictures. It was a huge fight. Then when he told me we should have waited to have kids.it really broke me inside. I was 6 or 7 months pregnant. I think it really bothers him that i havent been able to get a good job since we had our kids. Its a really sad moment for me as a wife and a mother. Despite the difficulties i love my babies. His lack of support and love has really hurt me