Breastfeeding while pregnant

Daisy
My son is 11 months old and I just found out that I am 7 weeks! We are really excited to have our second so close. I am wondering if there's any mom who have kept breastfeeding while pregnant and noticed any changes or challenges that came with it. I'm thinking I'm not going to force him to wean so if he keeps going that is ok with me. I guess I'm also wondering if there's any moms who have tandem fed did you notice it affected your newborn at all? My son just loves to nurse so I don't think he will be done but I guess these kids surprise us all the time don't they.