Nervous

I had my baby almost 8 weeks ago…my 3rd child…my husband is gonna get a vasectomy due to me being high risk…we got married a month ago and has sex while in post partum i told him to buy condoms he refused I told him to pull out and when he didn’t he said my bad 😩. I am supplementing with formula and breast milk my period came on last month 11/20/22. I’m nervous because I haven’t gotten my period and when i bled last month i had zero cramps….I’m nervous