misscarrying. should I try progesterone cream?

I'm 4w4d pregnant. I started cramping and bleeding a few hours ago. I just went to the lab to have my hcg levels checked but I won't know results until tomorrow at the soonest. There isn't a ton of blood. It's like my normal period. I went to get pads and saw harmony cream which is a progesterone cream. Should I try it? Do you think it could help at all?