Period after birth?

Kelly
How long did it take to get your period after birth i am 8 weeks pp. I bled for only two weeks after birth then it stopped . my husband and i have sex 4 times but he got fixed as well. Since then it seems like its never gonna return i have cramping but nothing any advice? If so whats the longest it took come back ? My husband swears up and down im pregnant again but i dont think so he recently got fixed