Uy mamsh, I can hear how worried you are, and that's totally valid, pero please don't panic muna, okay? Dating measurements versus actual dating can happen, especially kung ang dating mo from LMP but ovulation came later, ganyan talaga sometimes, at hindi yan automatically bad. The important thing is you need to follow up with your OB like she asked at makita nyo ulit after one month para masigurado ang dating and development. About the pain meds you took before you knew, I won't say it's fine or not fine kasi yan medical question, pero yun exactly ang dapat i-discuss ninyo with your doctor sa follow-up, hindi sa amin, ha? She'll know best kung may risk or hindi based sa buong picture ng case mo. A few of my mum friends went through similar worries, at ang OB nila nag-reassure after ng proper check, so trust the process, and ask all your questions next visit, walang iwanan. Ang cramps without spotting is something to monitor, pero again, if they get worse or may bleeding, go to emergency na, ha? For now, rest, hydrate, and take it one ultrasound at a time. You got this.