The marriage record for Abraham and Stina is at GID 2395.11.19600 (1746, 05 Sep). I would have expected it to state that Abraham was a widower, enkling (modern spelling änkling) or some abbreviation of it, but there is no title at all.
(I don't see why I thought Stina so very young to be married, she was 26, exactly normal.)
The birth record for Bengt is at GID 2395.11.14900. He was born 23 June 1734 to Abraham Månsson and his wife Ingebor (modern spelling Ingeborg Bengtsdotter.
I think Stina was Abraham's third wife!?! Because there is a death record (at GID 2395.11.20700) of Abraham Månsson's wife, at Skepsta Carin Nils (that's short for Nilsdotter). She died 04 March 1746.
That's really cutting it awfully fine! Because Abraham wasn't allowed to marry until 04 Sep, and he actually got married to Stina on the 5th! (There was a 6 month hiatus for widowers and 12 months for widows before they were allowed to re-marry.)
I did a quick look for Abraham's first wedding, but couldn't find it. However, his first wife may not have been from this parish and then it wouldn't have been recorded here.
Ingela