If someone has a micarriage and had sex a week afterwards could it cause infertility?

No. Intercourse unless associated with an std will no cause infertility. Untreated infections from std's can lead to infertility. Summary...No...Having sex after a miscarriage will not lead to infertility.
Yes. It is possible to get an infection after a procedure. Having sex itself is not a problem but sometimes if the area is not healed it can lead to scarring inside the uterus or fallopian tubes. In general, it should be fine.
Yes. It is possible to get an infection after a procedure. Having sex itself is not a problem but sometimes if the area is not healed it can lead to scarring inside the uterus or fallopian tubes. In general, it should be fine.
Yes. It is possible to get an infection after a procedure. Having sex itself is not a problem but sometimes if the area is not healed it can lead to scarring inside the uterus or fallopian tubes. In general, it should be fine.