Stressing isn't the word

Hi ladies I'm currently 4weeks and 6 days pregnant I've had pink spotting last night and now brownish spotting ....has anyone had this? is it normal never had it before . I've just had 3 miscarriages in a row but thankful I have a beautiful 8 year old .... just stressing ...I'm in UK so docs won't do anything until I'm in pain and I've got early scan booked in for 3rd June it's sooo far away