Sacred and nervous...

So I'm 34 and as of today I'm 7 weeks pregnant. I've had two recent miscarriages in between August and November of 2017... Both I was only a few weeks. I had never made it passed 5 weeks with both. Well tonight I went to pee and when I wiped it was pinkish brown discharge... not a lot but noticeable. I'm trying not to freak out but I'm really nervous. My significant other and I haven't shared us being pregnant with anyone at all... not even my two older kids (15 & 8). I told him too that I wanted to wait to go to the doctor until I've missed two periods... because I dont want to get my hopes up just to have my heart broken a third time. Should I be nervous?