Safe activity?

Amanda • Good things come to thous who wait... Well I waited for Mr. Right now waiting for bfp
My husband and I just found out we are 4-5 weeks pregnant. We have a family thanksgiving trip planed with family that involves 4 wheeling and ATVs. We do not want to say anything yet because it is still to soon and doctors appt is after the trip. I will be about 7 weeks during the trip. Do you feel it would be ok to engage in riding these? It is no crazy riding just easy trail riding but still worried.