Any ideas what this is?!

Pip • Pregnant with a little boy • c-section is booked for 4th July 2016 at 8am ✨
Since falling pregnant I'm now 15 weeks and 5 days, I've had these two red marks, one on my hand and one on my leg. Whatever it is is getting bigger. The one on my hand gets itchy when hot but one on my leg doesn't feel itchy at all. Both feel dry. Any ideas???