Dates!

vic

I have pcos so haven't had a period since feb! I think i ovulated on the 9/10 of May and I found out I was pregnant on the 20th, I took a digital on the 22nd that said 1-2.. now do I still add 2 weeks on like you would normally go from the start of your last period? Trying to work out how far id be to book an early private scan x