Spotting

I’m almost 7 weeks pregnant, after I miscarried in February. I’m having very light brown spotting, and it’s watery. I’ve had sex 4 times in the last less than 24 hours..could it be irritation from my cervix? I’ll be devastated if I miscarry. Cramps are very light, if even there at all. I don’t have an appointment until Thursday. Should I call my doctor Monday?