Due date change

Well, originally due date was estimated at may 25th but after first ultrasound on Thursday I've been moved back to June 2nd. Kind of disappointed to have an extra week of first trimester nausea and an extra week of stress over being in the miscarriage danger zone as I think of it. My husband says no biggie but I've been very bummed to go from 8 weeks back to 7. I'm just wanting to end this nausea and feel a little more secure. But good heartbeat at 132 bpm.