I just had my 3rd child 10 months ago by C-section I think I could be pregnant again is this safe?

You should be. Fine. Many have had 4, 5 even 6 c-sections. Risks do increase, especially pain during pregnancy from scar tissue, but maybe no, you may cruise through. Consider maybe a tubal if not against your beliefs. And see if u are pregnant with pregnancy test. Having 2 children in close proximity seems more difficult.