The hamstring may have to do with sciatica or hip pain from side sleeping. The pressure will continue. Lots of blood flow and in that area and everything is getting bigger! You're soo close. Take it easy and be kind to your body.
You'll start feeling ligament pain if not already too as things loosen up. And in about 10 weeks you'll possibly get lightning crotch... that one was always fun.
The body is amazing trust it. Try not to stress. That is counterintuitive. My motto is no blood, all good.
Re: Hamstring pain ongoing 2+ weeks. Pelvic/vaginal heaviness at 25 weeks pregnant