Pregnant women "at any stage of gestation" can now receive the non-adjuvanted H1N1 flu vaccine in Sarnia, Ont., health officials have announced.

The Community Health Services Department received 900 doses of the vaccine especially for pregnant women on Wednesday. It was available to pregnant women at the Bayside Centre clinic in Sarnia and the North Lambton Lodge in Forest on Thursday.

While "there's no safety issue" in either the adjuvanted or non-adjuvanted vaccine for pregnant women, the new supply "gives them a choice," Vicki Hawksworth, Lambton County's supervisor of environmental health and prevention services, told CBC News.

Canada has purchased nearly two million doses of unadjuvanted vaccine for pregnant women and young children, though adjuvanted vaccine is more effective for young children.

More than 7,000 people have received the swine flu vaccine in Lambton County since the health unit began vaccinations on Oct. 26, Hawksworth said.

Though the clinics got off to a bit of a rough start, with three-hour wait times in some cases, "we feel that so far we've done a good job," Hawksworth said. "I think the things we needed to improve was traffic flow and the amount of staff, and we've certainly been working really hard at that."