4 weeks pregnant babycenter babycenter.com http://www.babycenter.com/6_your-pregnan… 4 Weeks babycenter.com http://www.babycenter.com/6_your-pregnancy-4-weeks_1080.bc source Week 4: 4 weeks pregnant 4 weeks pregnant Week 4: 4 weeks pregnant 4 weeks http://www.babycenter.com/6_your-pregnancy-4-weeks_1080.bc