25 weeks and 5 days

I am constantly horny. My SO works from 8-6 everyday. I started masturbating when I was about 13 or 14. But I’ve only played with my clit. Now that I’m pregnant, it’s like I want something in there while playing with my clit. What can I use? I know a dildo. But I don’t have one and I’m a stay at home mom, so I can’t just go buy one with no money, my SO said he’d buy one AFTER the baby, because he loves to play with them with me. What can I use that’s safe? Can I use my fingers?! Someone help a lady out. I’m just so horny I can’t control it!!!!