bleeding after sex - 11 weeks post 16 week miscarriage

I found out my little girl had died at 16 weeks pregnant by private scan. I was induced and delivered her a few days later and was told the placenta was fully intact and that everything had come away. I bled for 2 weeks then stopped. I had spotting on and off every now and again and finally got a period at around 9 weeks post miscarriage which was abit heavier than usual and lasted 6 days. I had the go ahead from the consultant to try again as long as I felt emotionally ready. 
It's been 11 weeks today, and after having sex the last few times I've had spotting. I went to the toilet after the last time and it was pink. 
Has anyone else had this, is it normal? Should I stop ttc maybe? I've called my consultant but she is on annual leave and have been told she will call me when she's back but I can't stop worrying that maybe my body isn't ready.