Help!!

I'm 7weeks preggo today. About 2-3 weeks ago my doc put me on Progesterone because my levels weren't quite as high as they should've been. I will get to stop taking them at 10-12 weeks depending on my levels. Well between that and my prenatal(contains iron), I am SOOO constipated! I've been taking a softener once a day but I'm too nervous to take an actual laxative. Any advice on home remedies that have worked for any of you momma's?! In willing to try almost anything!