The number of Obamacare plans nationwide offering on-demand abortion is skyrocketing despite a rule that bars using healthcare subsidies for the procedure, according to a new investigation.

The probe by two anti-abortion groups comes on the heels of a GAO report that found over 1,000 plans offer elective abortions, not allowed under Obamacare and personally ruled out by the president.

“2015 appears to be shaping up to include more abortion plans and companies switching policies to cover abortion on demand,” said a preliminary statement from the report produced by the Family Research Council and the Charlotte Lozier Institute.

For example, they found, Group Health Cooperative in Washington state offered only abortion-free plans in 2014. According to their 2015 plan documents, now all of their individual plans cover elective abortion.

Also, many so-called “Multi-State Plans” that excluded elective abortion in 2014 are offering it. “In Connecticut, two of the four new MSPs will cover elective abortion, according to 2015 plan documents,” they two groups said in a short briefing to Secrets.

What’s more, there are indications that even the federal government is considering covering elective abortions in their health insurance.

In tweeting out this story, House Speaker John Boehner wrote, "President Obama said taxpayers wouldn’t be forced to pay for abortions in #ObamaCare. That wasn’t true."

Anti-abortion advocates claim that the abortion coverage has been hidden in confusing language in health plans, a charge verified by the recent GAO report, and comments from key Obamacare architect Jonathan Gruber who said the “lack of transparency” with which the law was approved was a “huge political advantage.”

On Capitol Hill Thursday afternoon, Rep. Chris Smith, the co-chair of the Bipartisan Congressional Pro-life Caucus, will join with the Family Research Council, the Charlotte Lozier Institute and the Alliance Defending Freedom to push a new effort to require that Obamacare insurance plans be more transparent and tell Americans which plans offer abortion coverage on demand.

Smith plans to introduce the “No Taxpayer Funding for Abortion and Abortion Insurance Full Disclosure Act,” and the groups are to provide the full report on their findings so far on state health plans.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com.