Please help!

I am 5 weeks and 2 days pregnant today. Since two days ago I have been having this pinkish mucus going on for about 3 days and kind of off and on since I have found out. Me and my husband have had 3 miscarriages within the last two years and so we are terrified. I'm afraid it's happening again. Has anyone has bleeding and still carried a normal pregnancy???. Also have been having a lot of back pain today. And a lot of nausea so of course I'm like am I having an ectopic. I cant go in until Monday to get leveled checked. I'm just praying this baby sticks and remains healthy!