What should I do

Jessica • 23 years old , mommy of 2 boys Damien my 1 year old 💙 and my son nova who is coming 10/02/19 🌈🤰🏽had 2 miscarriage 2018 😞🕊

Is it normal to have period cramps type feeling in your lower back I’m 29 weeks and 4 days pregnant it doesn’t hurt that bad but I can feel cramping in my lower back hurts more when I’m laying down !?!?!