More than 1,400 same-sex couples have married in the first three months since the gay marriage bill was introduced, figures from the Office for National Statistics show.
Of the 1,409 marriages that took place in England and Wales between March 29 and June 30, 56% were between female couples while 44% were between male couples.
A family lawyer described the overall figure as "surprisingly" low and said that the number is likely to increase when the law changes this December to allow civil partners to convert to same-sex marriages.
"We have received many inquiries from same-sex couples wanting information for how they can change their civil partnership to a marriage," said Slater & Gordon's Andrew Newbury.
"Due to this, we suspect the figures will increase when the law changes this December allowing civil partnership to convert to same-sex marriage."